Open source game developers (J)

J Fixby

Developed game: libGDX
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J Williams

Developed game: FlightGear
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j-jorge

Developed games: COCOS2D-X, Plee the Bear
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J-P Nurmi

Developed game: Qt
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j-p-e-g

Developed game: NLarn
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j-palomo

Developed games: GZDoom, ZDoom
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J-VdS

Developed game: Mindustry
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J. Ali Harlow

Developed game: SLASH'EM
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J. Applegate

Developed game: Nuvie
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J. Edward Sanchez

Developed game: OGRE
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J. Hunter Johnson

Developed game: PCGen
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J. W. Bjerk

Developed game: The Battle for Wesnoth
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J.C

Developed game: Phaser
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J.M. de Jong

Developed game: Unknown Horizons
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J.W

Developed game: Iter Vehemens ad Necem
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Ja-MiT

Developed game: The Battle for Wesnoth
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Jaakko Keränen

Developed game: Doomsday Engine
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Jaakko Niemi

Developed game: Crossfire
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Jaakko Perttilä

Developed game: Performous
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Jaakko Tapani Peltonen

Developed game: Falcon's Eye
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Jacek Nakonieczny

Developed game: Cataclysm: Dark Days Ahead
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Jack

Developed game: Vega Strike
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jack

Developed game: Godot
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Jack Andersen

Developed game: Metaforce
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Jack Bohlen

Developed game: Phantasy Star Rebirth
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Jack Coulter

Developed game: Openfrag
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Jack Cummings

Developed game: WorldForge
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Jack Dolabany

Developed game: MonoGame
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Jack Greiner

Developed game: Naev
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Jack Morgan

Developed game: MegaMek
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Jack Rainy

Developed game: UnCiv
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Jack Scotson

Developed game: osu!
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Jack Slater

Developed games: ioquake3, OpenArena, Tremulous
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jack-the-BOSS

Developed game: XMage
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Jacker

Developed game: ET: Legacy
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Jackerty

Developed games: OpenMW, TES3MP
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JackLee9355

Developed game: osu!
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Jackson Davis

Developed game: OpenRCT2
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jacksonmj

Developed game: The Powder Toy
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Jacky Liang

Developed game: RuneLite
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Jaco

Developed games: CorsixTH, OpenXcom
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Jacob Anderson

Developed game: MonoGame
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Jacob Burroughs

Developed game: SuperTux
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Jacob Dufault

Developed game: OpenRA
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Jacob Essex

Developed games: OpenMW, TES3MP
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Jacob Ferrero

Developed games: Freeminer, Minetest
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Jacob L. Anawalt

Developed game: Batalla Naval
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Jacob McElroy

Developed game: RuneLite
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Jacob Rask

Developed game: Freeciv-web
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Jacob Sweeten

Developed game: unitystation
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jacob1

Developed game: The Powder Toy
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Jacopo Santoni

Developed game: OpenMoM
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Jacques Chion

Developed game: Tux Paint
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Jae-Hong Lee

Developed game: COCOS2D-X
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jafdy

Developed game: Endless Sky
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Jai Sharma

Developed game: osu!
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Jaime Passos

Developed game: Sonic Robo Blast 2
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Jaime van Kessel

Developed game: EmptyEpsilon
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Jairo

Developed game: DNT
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jaj22

Developed game: Pioneer
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Jaka Kranjc

Developed games: GemRB, Jagged Alliance 2 Stracciatella
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Jake

Developed game: OpenDominion
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Jake Archibald

Developed game: proxx
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Jake Brown

Developed game: CivOne
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Jake La Foret

Developed game: SunDog Resurrection
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Jake Petroules

Developed game: Qt
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Jake Poznanski

Developed game: MonoGame
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jakexblaster (Marcos Cunha)

Developed game: Open Tibia
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Jakim Friant

Developed game: AutoREALM
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Jakob Fries

Developed game: Teeworlds
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Jakob Mulvad Nielsen

Developed game: CivOne
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Jakob Sinclair

Developed games: Godot, Sourcehold
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Jakub Friedl

Developed game: Tux Paint
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Jakub Janek

Developed game: Unknown Horizons
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Jakub Linhart

Developed game: CrossUO
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Jakub Lukasik

Developed game: Lumix Engine
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Jakub Pavlík

Developed game: freeVikings
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Jakub Vaněk

Developed games: Freeminer, Minetest, OpenBVE
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Jakub Wilk

Developed game: ScummVM
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Jakub Šimek

Developed game: jMonkeyEngine
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jal76

Developed game: Spring: 1944
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jalbert-dev

Developed game: StepMania
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James A. Simons

Developed game: Wolfpack Empire
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James Allred

Developed game: MegaMek
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James Archbold

Developed game: Ancient Beast
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James Barnard

Developed game: Tux Racer
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James Broad

Developed game: Wargamer
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James Cameron

Developed game: Netrek
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James Carthew

Developed games: Privateer - Gemini Gold, Vega Strike
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James Carty

Developed games: OpenMW, TES3MP
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James Damour

Developed game: MegaMek
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James Ford

Developed game: MonoGame
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James Game

Developed game: libGDX
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James Gardner

Developed game: Thousand Parsec
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James Gregory

Developed game: COCOS2D-X
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James Guillochon

Developed game: Endless Sky
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James Hale

Developed game: Sonic Robo Blast 2
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James Haley

Developed game: Chocolate Doom
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James Haley (Nightdive Studios)

Developed games: Chocolate Doom, Strife: Veteran Edition, The Eternity Engine
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James Hodgson

Developed game: OpenDominion
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James Hofmann

Developed game: Iceball
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James Hood

Developed game: Simutrans
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James Jurach

Developed game: libGDX
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James Khan

Developed game: jMonkeyEngine
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James Le Cuirot

Developed games: Commander Genius, freegish, SLADE
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James Likier

Developed game: Manic Digger
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James Lupiani

Developed game: MonoGame
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James M Best

Developed game: WorldForge
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James Marshall

Developed game: Cat Mother Dead Justice
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James Meickle

Developed game: Dungeon Crawl Stone Soup
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James Packer

Developed game: Bridge Command
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James Paige

Developed games: O.H.R.RPG.C.E., Ren'Py
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James R.

Developed game: Sonic Robo Blast 2
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James Russell

Developed game: CorsixTH
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James Sherratt

Developed game: MegaGlest
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James Simonson

Developed game: unitystation
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James Stone

Developed game: GL-117
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James Thomas

Developed game: Urho3D
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James Turner

Developed games: FlightGear, Qt, WorldForge
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James Urquhart

Developed game: Terminal Overload
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James Wallen-Jones

Developed game: Open RSC
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James Watkins-Harvey

Developed game: LÖVE
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James Webb

Developed game: Lumix Engine
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James Westman

Developed game: Godot
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james4k

Developed game: OpenFL
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James58899

Developed game: osu!
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Jamie Taylor

Developed game: osu!
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jamrenaissance

Developed game: PCGen
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Jan Adamec

Developed game: Castle Game Engine
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Jan Arne Petersen

Developed game: Qt
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Jan Beich

Developed games: OpenBOR, OpenRA
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Jan Boon

Developed game: Ryzom Core
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Jan Borsodi

Developed games: OpenMW, TES3MP
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Jan Ekholm

Developed game: Civil
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Jan Engelhardt

Developed games: Chocolate Doom, SLADE, ZDoom
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Jan Friederich

Developed game: Mmpong
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Jan Grulich

Developed game: Qt
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Jan Jurzitza

Developed game: osu!
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Jan Korbel

Developed game: Simutrans
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Jan Kyselica

Developed game: Aisleriot
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Jan Lukas Gernert

Developed game: REGoth
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Jan Magne Tjensvold

Developed game: Stars! Nova
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Jan Mattner

Developed game: Ilarion
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Jan Mulder

Developed games: Pendumito, WebHangman
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Jan Petykiewicz

Developed game: GemRB
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Jan Polák

Developed games: libGDX, Mindustry
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Jan Raszyk

Developed game: ezQuake
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Jan Rietema

Developed games: SilverTree, The Battle for Wesnoth
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Jan Schäfer

Developed game: JSkat
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Jan Urva

Developed game: phpRPG
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Jan Wynholds

Developed game: Tux Paint
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Jan-Hendrik Peters

Developed game: Arx Libertatis
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Jan-Otto Kröpke

Developed game: 2Moons Browsergame Engine
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Jan-Peter Nilsson

Developed games: OpenMW, TES3MP
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Jana Mohn

Developed game: OpenSAGE
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Jana Weigel

Developed game: Unknown Horizons
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Janaszar

Developed game: Endless Sky
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Janet Hunt

Developed game: FreeLords
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Janet Walz

Developed game: NetHack
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JanetHunt

Developed game: Flare
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Jani Kajala

Developed game: Cat Mother Dead Justice
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Jani Mäkinen

Developed game: Unvanquished
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Janis Eisaks

Developed game: Sudokuki
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janKir

Developed game: boardgame.io
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Janne

Developed game: Ancient Beast
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Janne Johansson

Developed game: Haxima
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Jannik Vogel

Developed games: OpenRW, OpenSWE1R
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JANNiS

Developed game: Skrupel - Tribute Compilation
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Jared

Developed game: Snowballz
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Jared Adams

Developed games: Land of Fire, Mana, The Mana World
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Jared Cook

Developed game: Phaser
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Jared Miller

Developed game: Duality
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Jared Stephen

Developed game: Hale
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Jarek Lewandowski

Developed game: COCOS2D-X
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JarekKobus

Developed game: Qt
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JarheadHME

Developed game: Wind Waker Randomizer
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Jari

Developed game: Open Apocalypse
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Jari Winberg

Developed game: Simple-Solitaire
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Jaroslav Benkovský

Developed game: GemRB
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Jaroslaw Wisniewski

Developed game: libGDX
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Jarosław Zgierski

Developed game: osu!
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Jarrett Thomas

Developed game: Land of Fire
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Jarrod L. Miller

Developed game: XPilot
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Jarvik7

Developed game: Yamagi Quake II
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Jasmin Patry

Developed game: Tux Racer
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Jasmine Langridge

Developed game: Trigger
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Jason

Developed games: PCGen, Wargamer
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jason

Developed game: Gang Garrison 2
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Jason Barron

Developed game: Qt
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Jason Benaim

Developed game: Chocolate Doom
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Jason Buchanan

Developed game: PCGen
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Jason Bush

Developed game: MegaMek
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Jason D. Clinton

Developed game: Aisleriot
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Jason Dorje Short

Developed game: Freeciv
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Jason Farmer

Developed game: Siege of Avalon : Open Source
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Jason Felds

Developed games: Etterna, StepMania
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Jason Gilbert

Developed games: Cataclysm: Dark Days Ahead, OpenXcom
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Jason Hancock

Developed game: Panda3D
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Jason Harrison

Developed game: boardgame.io
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Jason Hooks

Developed games: OpenMW, TES3MP
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Jason Johnson

Developed game: Dune Legacy
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Jason Jones

Developed game: Cataclysm: Dark Days Ahead
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Jason Klapste

Developed game: Rails: an 18xx game system
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Jason Kwok

Developed game: Phaser
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Jason M Carlough

Developed game: DOOM Retro
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Jason Nunn

Developed game: Nighthawk
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Jason Smestad

Developed game: Valyria Tear
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Jason Smyrloglou

Developed game: MegaMek
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Jason Summers

Developed game: Golly
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Jason Tighe

Developed game: MegaMek
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Jason Wall

Developed game: XMage
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Jason Walsh

Developed game: StepMania
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Jason Winzenried

Developed game: Vega Strike
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Jason Wood

Developed game: Tux Football
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Jason Xu

Developed game: COCOS2D-X
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Jason Yates

Developed game: Aleph One
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Jasper Spaans

Developed game: PCGen
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Jasper v. B.

Developed game: openage
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Jasper Van der Jeugt

Developed game: Annchienta
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jastiv

Developed game: Wograld
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Jat15

Developed game: Minetest Game
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Javier A. Ortiz Bultron

Developed games: JaNaG - Java Name Generator, PCGen
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Javier Arevalo

Developed game: Phaser
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Javier Jardón

Developed games: Aisleriot, Atomix, xoreos
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Javier Marín

Developed game: SharpKonquest
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Javier Torrente

Developed game: eAdventure
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javila

Developed game: Land of Fire
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Jay Atkinson

Developed game: OpenXcom
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jay binks

Developed game: UltraStar Deluxe
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Jay Fenlason

Developed game: Hack
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Jay French

Developed game: Space Trader for Windows
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Jay Kint

Developed game: Omega-rpg
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Jay Oster

Developed game: melonJS
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Jay Peet

Developed game: alive
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Jay Sistar

Developed game: OpenFL
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jay wellings

Developed game: Mpango
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JayH2971

Developed game: Daggerfall Unity
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Jayme Cox

Developed game: PCGen
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jaytersen

Developed game: Unvanquished
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JaytleBee

Developed game: unitystation
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jazz mickle

Developed game: DelverEngine
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jazztickets

Developed games: Choria, Empty Clip, irrlamb
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jbeshir

Developed game: MonoGame
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jbot-42

Developed game: The Powder Toy
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jbuck3

Developed game: Godot
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jcaesar

Developed game: OpenClonk
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jcd000

Developed game: Cataclysm: Dark Days Ahead
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jcnossen

Developed game: Spring
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jcreusand

Developed game: Freeciv
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jdah

Developed game: minecraft-weekend
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JDarthenay

Developed game: OpenXcom
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jdempsey-au

Developed game: PCGen
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jdgleaver

Developed game: TyrQuake
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jdigreze

Developed game: Unknown Horizons
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jdrueckert

Developed game: Terasology
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Jean Jung

Developed game: Godot
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Jean Karim Bockstael

Developed game: MicroWar 2.0
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Jean Lepropre

Developed game: FreeCol
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Jean Luc PONS

Developed game: BlockOut II
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jean pellotier

Developed game: FlightGear
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Jean-Baptiste "Jiba" Lamy

Developed game: Slune
Organization: Nekeme Prod.
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Jean-Baptiste Onofré

Developed game: XMage
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Jean-Christophe Collet

Developed game: NetHack
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Jean-Denis Boivin

Developed game: OpenFL
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Jean-Francois Renaud

Developed game: jMonkeyEngine
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jean-manuel clemençon

Developed game: SuperTuxKart
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Jean-Marc Le Peuvedic

Developed game: GL-117
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Jean-Michaël Celerier

Developed game: Qt
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Jean-Michel Baudrey

Developed game: Duckmaze
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Jean-Michel Martin de Santero

Developed games: Powermanga, TecnoballZ
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Jean-Patrick Guerrero

Developed games: Freeminer, Minetest, Minetest Game
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Jean-Philippe Meuret

Developed game: Speed Dreams
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Jean-Pierre Sabbagh

Developed game: ENIGMA (development environment)
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Jean-Sébastien B.

Developed game: libGDX
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Jean-Vivien Maurice

Developed game: Extreme Tux Racer
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Jeannette Bilton

Developed game: Freya Game Engine
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JeeZ

Developed game: Spring
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Jeff Baril

Developed game: PCGen
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Jeff Breidenbach

Developed game: Pioneers
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Jeff Cotter

Developed game: Wolfpack Empire
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Jeff Coyle

Developed game: VASSAL
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Jeff Freedman

Developed game: Exult
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Jeff Goodenough

Developed game: Daimonin
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Jeff Graw

Developed game: Vega Strike
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Jeff Huang

Developed games: Freeminer, Minetest
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Jeff Johnson

Developed game: MonoGame
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Jeff Koerner

Developed game: Pizza Business
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Jeff Makey

Developed game: BZFlag
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Jeff Nowakowski

Developed game: Netrek
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Jeff Thoene

Developed game: Shotgun Debugger
Organization: Game Creation Society
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Jeff Vogel

Developed game: Classic Blades of Exile
Organization: Spiderweb Software
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Jeff Wadsworth

Developed game: XMage
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Jeff Wang

Developed games: COCOS2D-X, MegaMek
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Jeffery Myers

Developed games: BZFlag, raylib
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Jeffrey 'Sigurd' Westcoat

Developed game: The Battle for Wesnoth
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Jeffrey Haines

Developed games: OpenMW, TES3MP
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Jeffrey Han

Developed game: opsu!
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Jeffrey Lucas Eldridge

Developed game: The Battle for Wesnoth
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Jeffrey Sanders

Developed game: Bygfoot
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jekin trivedi

Developed game: WorldForge
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Jennifer McMurray

Developed game: ScummVM
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Jens A. Koch

Developed game: FIFE
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Jens Ayton

Developed game: Oolite
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Jens Fischer

Developed games: HaxeFlixel, OpenFL
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Jens Fursund

Developed game: Qonk
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Jens Pitkänen

Developed game: raylib
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Jens Rottmann

Developed game: Minetest
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Jens Schmer

Developed game: PixelLight
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jenschou

Developed game: Angband
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jensj12

Developed game: OpenRCT2
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Jeongin Lee

Developed game: Commander Genius
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jepael

Developed game: ScummVM
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Jerek Wilson

Developed game: XMage
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Jeremiah Morris

Developed game: Aleph One
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Jeremiah Sypult

Developed games: ioquake3, OpenArena, Tremulous
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Jeremy Bicha

Developed game: Aisleriot
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Jeremy Cochoy

Developed game: ClanLib
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Jeremy D. Monin

Developed game: JSettlers
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Jeremy Glazebrook

Developed game: FreeSO
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Jeremy Hitchcock

Developed game: SunDog Resurrection
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Jeremy Lainé

Developed game: Qt
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Jeremy Liberman

Developed game: unitystation
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Jeremy List

Developed game: Pioneer
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Jeremy Munson

Developed game: Zero-K
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Jeremy Newman

Developed game: Nuvie
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Jeremy Osborne

Developed game: Cataclysm: Dark Days Ahead
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Jeremy Pallats/starcraft.man

Developed game: PCGen
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Jeremy Parsons

Developed game: Aleph One
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Jeremy Plsek

Developed game: RuneLite
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Jeremy Reeves

Developed game: Decker
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Jeremy Rose

Developed games: Cataclysm: Dark Days Ahead, openc2e
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Jeremy Sheeley

Developed game: Kobo Deluxe
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Jeremy Van Grinsven

Developed games: Space Nerds In Space, Word War vi
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Jeremy Whiting

Developed game: Blinken
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Jeremy Yoder

Developed game: SunDog Resurrection
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Jeric

Developed game: libGDX
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Jerimee Richir

Developed game: Cataclysm: Dark Days Ahead
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Jeroen

Developed game: RuneLite
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Jeroen Boukens

Developed game: Red Eclipse
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Jeroen Broks

Developed game: Sudokuki
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Jeroen Carolus

Developed game: android-chess
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Jeroen Groeneweg

Developed game: Smash Battle
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Jeroen Reurings

Developed game: melonJS
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Jeroen Sack

Developed game: OpenRCT2
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JeroenDStout

Developed game: OpenRCT2
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JEROME BIGOT

Developed game: Bombermaaan
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Jerome Marty

Developed game: Commander Genius
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Jerome Touffe-Blin

Developed game: PCGen
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jeromepasion

Developed game: Qt
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Jerrad Bieno

Developed game: XMage
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Jerry

Developed game: VASSAL
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Jerry Jiang

Developed game: 2048
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Jesper Sørensen

Developed game: Phaser
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Jesse

Developed game: MonoGame
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Jesse Jaara

Developed game: The Powder Toy
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Jesse Johnson

Developed game: OGRE
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Jesse Luehrs

Developed game: Dungeon Crawl Stone Soup
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Jesse Manning

Developed game: FIFE
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Jesse Serrao

Developed game: RuneLite
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Jesse Simko

Developed game: Aleph One
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Jesse Smith

Developed games: Atomic Tanks, SDL Sopwith
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Jesse Talavera-Greenberg

Developed game: libGDX
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Jessica Beller

Developed games: Land of Fire, Source of Tales
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Jessica Hawkwell

Developed game: Terasology
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jestarray

Developed game: Phaser
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JesterX666

Developed game: unitystation
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Jesus Fernandez

Developed game: Qt
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jesusjbr

Developed game: XMage
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Jetro Lauha

Developed game: Pathogen Warrior
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jewellds

Developed game: Freedoom
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JFonS

Developed game: Godot
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jgelderloos

Developed game: openage
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jguyton

Developed game: Vega Strike
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jh

Developed game: Return to the Roots
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Jialong Zhai

Developed game: COCOS2D-X
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jianglong

Developed game: COCOS2D-X
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jianliang79

Developed game: Qt
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Jianxiang Wang (王健翔)

Developed game: Cataclysm: Dark Days Ahead
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Jibbajabbafic

Developed game: unitystation
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Jiddo

Developed game: Open Tibia
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Jihed Kallel

Developed game: melonJS
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Jihoon Yang

Developed game: osu!
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Jiiniasu

Developed game: Vocaluxe
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Jim

Developed game: OpenRCT2
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Jim Armstrong

Developed game: OpenRCT2
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Jim Cameron

Developed game: Underworld Adventures
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Jim Cotugno

Developed game: VASSAL
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Jim Gilloghy

Developed game: Colossal Cave Adventure
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Jim Schultz

Developed games: Greenius' Civil War, Wargamer
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Jim Urbas

Developed game: VASSAL
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Jimmy Berry

Developed game: openage
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Jimmy Christensen

Developed games: OldSkool Gravity Game, SDL-Ball
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Jimmy Delas

Developed game: HaxeFlixel
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Jimmy Salmon

Developed game: Stargus
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Jin XIA

Developed game: Terasology
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Jindrich kolman

Developed game: Machinations
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Jindřich Dítě

Developed games: Destination Sol, Terasology
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Jiri Daněk

Developed games: Andor's Trail, Pachi
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jiusheng

Developed game: COCOS2D-X
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Jiří Bobrek

Developed game: Train
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Jiří Kuneš

Developed games: OpenMW, TES3MP
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Jiří Moravec

Developed game: Seven Kingdoms: Ancient Adversaries
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jjonj

Developed game: Thrive
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JK Wood

Developed game: FreedroidRPG
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jk3064

Developed game: Spring
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JKatzwinkel

Developed game: Settlers III remake
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jkraybill

Developed game: Cataclysm: Dark Days Ahead
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jlin14

Developed game: XMage
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jmbjr

Developed game: Dungeon Crawl Stone Soup
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jmcdonnell-qnx

Developed game: Qt
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JMcKiern

Developed game: OpenTTD
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jmf

Developed game: Pioneer
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jmharmon

Developed game: XMage
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jmhorjus

Developed game: Endless Sky
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jmimu

Developed game: Free in the Dark (engine)
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jmm0

Developed game: pygame
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jmryan64

Developed game: Terasology
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jnecus

Developed game: UnCiv
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Jo Emil Holen

Developed games: Ghostly, Kartering
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Jo Shields

Developed game: MonoGame
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Joachim Breitner

Developed games: Infon Battle Arena, Widelands
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Joachim de Groot

Developed game: NLarn
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joachimdieterich.com

Developed game: UltraStar Deluxe
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Joakim Berg

Developed games: OpenMW, TES3MP
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Joakim L. Gilje

Developed game: Return to the Roots
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Joakim Söderberg

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Joan Josep

Developed games: OpenTTD, Unknown Horizons
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Joan Karadimov

Developed games: Devilution, DevilutionX
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Joan Queralt

Developed game: Biogenesis
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Joan Queralt Molina

Developed game: Biogenesis
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Joaquín

Developed game: Argentum Online
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JoBergeron

Developed game: Yamagi Quake II
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jobi-wan

Developed game: Oolite
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Jocelyn Chaumel

Developed game: First Strike
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Jocelyn Turcotte

Developed game: Qt
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Jochen Voss

Developed game: Moon-buggy
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Jodwin

Developed game: Mocha Doom
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Joe "Flame" Sullivan

Developed games: Eternal Lands, Other-Life
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Joe Doyle

Developed game: Hedgewars
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Joe Flint

Developed game: Brutal Chess
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Joe Forte

Developed game: Crystal Space 3D SDK
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Joe Hansen

Developed game: Tux Paint
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Joe Ludwig

Developed games: ges-code, GoldenEye: Source
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Joe Lyon

Developed game: PlaneShift
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Joe Shochet

Developed game: Panda3D
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Joe Stringer

Developed game: OpenTTD
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Joe Van Overberghe

Developed game: BZFlag
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Joe Venzon

Developed game: VDrift
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Joe Wells

Developed game: PCGen
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Joe Williamson

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JoeClacks

Developed game: Terasology
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joehager

Developed game: Panda3D
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Joel Bouchard Lamontagne

Developed game: Stringrolled
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Joel Croteau

Developed game: OGRE
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Joel Davis

Developed game: raylib
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Joel de Vahl

Developed game: Teeworlds
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Joel Graff

Developed games: OpenMW, TES3MP
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Joel Hedtjärn

Developed game: unitystation
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Joel Schumacher

Developed game: LÖVE
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Joel Stanley

Developed game: Thousand Parsec
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Joel Teichroeb

Developed games: OpenJK, ResidualVM, ScummVM
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Joel Uckelman

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Joerg Czeranski

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Joerg Kirchhoff

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joeshmo

Developed game: Daimonin
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joewan

Developed game: COCOS2D-X
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Joey L. Maalouf

Developed game: The Battle for Wesnoth
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Joey Marshall

Developed game: Snowballz
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Joey Parrish

Developed game: FreeSynd
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joffb

Developed game: Odamex
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Johan Althoff

Developed game: Teeworlds
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Johan Klokkhammer Helsing

Developed game: openage
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Johan Manuel

Developed game: Godot
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Johan Peitz

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Johan Rehnberg

Developed game: Spring
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JohanJansen

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Johann Schopplich

Developed game: EasyRPG Player
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Johannes Bergmeier

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Johannes Brandt Nielsen

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Johannes Danneker

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Johannes E

Developed game: PCGen
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Johannes Kadak

Developed game: The Powder Toy
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Johannes Maier

Developed game: Dungeon Crawl Stone Soup
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Johannes Neubauer

Developed game: chainreaction
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Johannes Prix

Developed game: FreedroidRPG
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Johannes Schickel

Developed game: ScummVM
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Johannes Schneider

Developed game: Inexor
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Johannes Sjölund

Developed game: libGDX
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Johannes Walcher

Developed game: openage
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Johannes Witt

Developed game: Godot
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Johannes Zellner

Developed game: Qt
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johannesrosenqvist

Developed game: Open Tibia
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John _Scott_ Tillman

Developed game: WorldForge
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John Bartholomew

Developed game: Pioneer
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John Bauer

Developed game: StepMania
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John Bolton

Developed game: VCMI
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John Bytheway

Developed game: Cataclysm: Dark Days Ahead
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John C Barstow

Developed game: xoreos
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John C. Allwein

Developed game: libGDX
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John Candlebury

Developed game: Cataclysm: Dark Days Ahead
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John Cater

Developed game: Crossfire
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John Cheetham

Developed game: PyChess
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John Cordell

Developed game: Privateer - Gemini Gold
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John Cote

Developed game: Panda3D
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John D. Corrado

Developed game: Odamex
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John D. Dilley

Developed game: Colonization too
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John Davis

Developed game: Monster Generator
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John Dean

Developed game: Morpheus Web Remake
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John Dullea

Developed game: AutoREALM
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John Duquette

Developed game: Wargamer
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John Eikenberry

Developed game: Civil
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John Ericson

Developed games: Iceball, OpenSpades
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John Gilbert

Developed game: Wargamer
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John Gray

Developed game: XMage
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John Layt

Developed game: Qt
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John Lyon-Smith

Developed game: MonoGame
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John McIntosh

Developed game: 4D Maze Game
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John Neijzen

Developed game: osu!
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John Nesky

Developed game: Shotgun Debugger
Organization: Game Creation Society
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John Popplewell

Developed game: Tux Paint
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John R. Sheets

Developed game: WorldForge
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John Rowat

Developed game: MegaMek
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John S.

Developed game: PyKaraoke
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John Skoteiniotis

Developed game: Phaser
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John Smith

Developed game: Daimonin
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John Stilley

Developed game: Dungeon Crawl Stone Soup
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John Strömblom

Developed game: OpenDominion
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John Thickstun

Developed game: FIFE
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John Turner

Developed game: OpenRA
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John Watson

Developed game: Phaser
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John Yockey

Developed game: Wolfpack Empire
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John Zulauf

Developed game: Godot
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John-He-928

Developed game: COCOS2D-X
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John-Paul Gignac

Developed game: Pathological
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John-Paul Treen

Developed game: Wargamer
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johnange

Developed game: COCOS2D-X
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Johnathan James

Developed game: FreeCol
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johndoe123

Developed game: ScummVM
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Johnny Salazar

Developed game: Pizza Business
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johnny8020

Developed game: Open Tibia
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johnrdconnolly

Developed game: Cataclysm: Dark Days Ahead
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johnreactor

Developed games: Etterna, StepMania
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jojo

Developed game: Red Eclipse
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JOKer

Developed game: Unknown Horizons
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JOKER VAN HAELN

Developed game: Mega Mario
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jokermatt999

Developed game: Cataclysm: Dark Days Ahead
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joliver82

Developed game: jMonkeyEngine
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Jolomann

Developed game: Etterna
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Jon

Developed game: VASSAL
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Jon Knapp

Developed game: Dungeon Crawl Stone Soup
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Jon Lund Steffensen

Developed game: Freeserf
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Jon Parise

Developed game: Panda3D
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Jon Rafkind

Developed games: Allegro, PainTown
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Jon Renner

Developed game: libGDX
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Jon Sargeant

Developed game: Machinations
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Jon Trulson

Developed game: Conquest
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Jonadab the Unsightly One

Developed game: Brogue
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Jonah Jeleniewski

Developed game: Phaser
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JonahDes

Developed game: Cataclysm: Dark Days Ahead
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Jonan

Developed game: Heroes of Wesnoth
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Jonas

Developed game: Godot
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Jonas A. Lind

Developed game: OpenRA
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Jonas Byström

Developed game: Slime Volleyball
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Jonas Eschenburg

Developed game: Thunder&Lightning
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Jonas Jelten

Developed game: openage
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Jonas Karlsson

Developed games: PCGen, ResidualVM, ScummVM
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Jonas Kulla

Developed game: mkxp
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Jonas Mörschbach

Developed game: Widelands
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Jonas Spillmann

Developed game: Amphetamine
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Jonas Termansen

Developed games: ges-code, GoldenEye: Source
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Jonast

Developed game: PyChess
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Jonathan

Developed game: openage
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Jonathan Atkins

Developed game: GLtron
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Jonathan Buresh

Developed game: Sintel The Game
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Jonathan C. Dietrich

Developed game: VASSAL
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Jonathan Clark

Developed game: Gorc
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Jonathan Dowland

Developed game: Chocolate Doom
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Jonathan E. Wright

Developed game: Nuvie
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Jonathan Evraire

Developed game: WebChess
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Jonathan G Rennison

Developed games: OpenTTD, TTDPatch
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Jonathan Haas

Developed game: OpenRCT2
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Jonathan Hamilton

Developed games: Open Apocalypse, OpenXcom
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Jonathan Lee

Developed game: RuneLite
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Jonathan Lilliemarck

Developed game: Allegro
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Jonathan Ling

Developed game: OpenRA
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Jonathan Liu

Developed game: Qt
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Jonathan M. Franz

Developed game: Psyco
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Jonathan Musther

Developed game: Slingshot
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Jonathan Neuschäfer

Developed games: Freeminer, Minetest
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Jonathan Nicholas

Developed game: DOOM Retro
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Jonathan Noyola

Developed game: MonoGame
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Jonathan Payne

Developed games: Etterna, StepMania
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Jonathan Pearl

Developed game: libGDX
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Jonathan Peppers

Developed game: MonoGame
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Jonathan Powell

Developed game: Arx Libertatis
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Jonathan Riddell

Developed game: Blinken
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Jonathan Seeley

Developed game: Allegro
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Jonathan Sieber

Developed game: Blobby Volley 2
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Jonathan Siwek

Developed game: FreeOrion
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Jonathan Skeate

Developed game: XMage
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Jonathan Stickles Fox

Developed game: Liberal Crime Squad
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Jonathan Toomim

Developed game: Brain Workshop
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Jonathan White

Developed games: ges-code, GoldenEye: Source
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Jonathan Wilson

Developed game: Theme Park Builder 3D CAD
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Jonathan Young

Developed games: Classic RBDoom 3 BFG, RBDOOM-3-BFG
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JonathanILevi

Developed game: EmptyEpsilon
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JonathanSteinbuch

Developed game: Return to the Roots
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Jonathon Fowler

Developed games: JFDuke3D, JonoF's Shadow Warrior Port (JFSW)
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Joni Orponen

Developed game: Anura
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Joni Vähämäki

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Jonne Nauha

Developed game: Urho3D
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Jonny D

Developed game: Openglad
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Jonny Paton

Developed game: OPMon
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jonri

Developed game: Godot
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JonSully

Developed game: GUSANOS
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jonwil

Developed game: Thyme
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Joona

Developed game: RuneLite
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Joona "JDruid" Karjalainen

Developed game: Trip on the Funny Boat
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Joonas Kerttula

Developed game: Frets on Fire
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joonicks

Developed game: Pioneer
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Joost Peters

Developed games: FreeSynd, ResidualVM, ScummVM
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Joost Yervante Damad

Developed game: openMSX
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Jordan

Developed game: RuneLite
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Jordan Ayers

Developed games: OpenMW, TES3MP
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Jordan Barnes

Developed game: Ancient Beast
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Jordan Butler

Developed game: Roguish
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Jordan Christiansen

Developed game: Duck Marines
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Jordan Irwin

Developed game: Stendhal
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Jordan Milne

Developed games: OpenMW, TES3MP
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Jordan Patterson

Developed game: Urho3D
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Jordan Phillips

Developed game: MonoGame
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Jordan Schidlowsky

Developed game: Godot
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Jordan Snelling

Developed game: Minetest Game
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Jordi Mallach

Developed game: Twine
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Jordi Mas

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Jordi Vilalta Prat

Developed games: ResidualVM, ScummVM
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Jordon Moss

Developed games: GZDoom, NBlood, PCExhumed, Rednukem, ZDoom
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Jordy Vieira

Developed game: freeablo
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Jordà

Developed game: The Battle for Wesnoth
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Jorge A. Gomes

Developed game: raylib
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Jorge Araya

Developed game: Godot
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Jorge Gómez Sanz

Developed game: INSTEAD
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Jorge Jara

Developed game: Freeminer
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Jorge Maldonado Ventura

Developed game: Unknown Horizons
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Jorge Martinez

Developed game: unitystation
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Jorin Vermeulen

Developed game: melonJS
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Joris Beugnies

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Joris Bontje

Developed game: Crossfire
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Joris Dauphin

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Joris van de Donk

Developed game: freegish
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Joris van Eijden

Developed game: Daggerfall Unity
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Jorn Vernee

Developed game: Cataclysm: Dark Days Ahead
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Jornand de Buisonjé

Developed game: Sopwith 3
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jorolf

Developed game: osu!
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Jorrit de Vries

Developed game: OGRE
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Jorrit Tyberghein

Developed games: Crystal Space 3D SDK, PlaneShift
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josch

Developed game: VCMI
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Jose Luis Cercós Pita

Developed games: Spring, Spring: 1944
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Jose Riha

Developed games: Hedgewars, Performous, UltraStar Deluxe
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Jose Varela

Developed game: StepMania
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Josef Moudrik

Developed game: Pachi
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Joseph Baffaro

Developed game: Betrayer's Moon Tactics
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Joseph Bleau

Developed game: Flare
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Joseph Botosh

Developed game: Necklace of the Eye
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Joseph Davies

Developed game: ScummVM
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Joseph Jezak

Developed games: ResidualVM, ScummVM
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Joseph Madamba

Developed game: osu!
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Joseph Pecoraro

Developed game: ezQuake
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Joseph Tilley

Developed game: VASSAL
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Joseph Tyx

Developed game: MegaMek
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Joseph Wang

Developed game: Race Into Space
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Joseph-Eugene Winzer

Developed game: ScummVM
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joseph-healy

Developed game: Terasology
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Josh Allen

Developed game: StepMania
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Josh Bodily

Developed game: COCOS2D-X
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Josh Bolduc

Developed game: KQ Lives
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Josh Braden

Developed game: Dungeon Crawl Stone Soup
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Josh Bressers

Developed game: Ularn
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Josh Davidson

Developed game: FlightGear
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Josh Flachsbart

Developed game: AutoREALM
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Josh Gelbard

Developed game: Dungeon Crawl Stone Soup
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Josh Hoover

Developed game: Crossfire
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Josh Katz

Developed game: melonJS
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Josh Keegan

Developed game: CorsixTH
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Josh Kelley

Developed game: Omega-rpg
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Josh Richey

Developed game: Cataclysm: Dark Days Ahead
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Josh Schonstal

Developed game: HaxeFlixel
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josh shepard

Developed game: Phaser
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Josh Shippam

Developed game: 2006-rebotted
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Josh Soref

Developed game: Phaser
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Josh Tynjala

Developed game: OpenFL
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Josh Ventura

Developed game: ENIGMA (development environment)
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Josh Zacharias

Developed game: Terasology
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Joshi1999

Developed game: Manic Digger
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Joshua Bartz

Developed game: MegaMek
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Joshua Blocher

Developed game: Red Eclipse
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Joshua Bodine

Developed game: BZFlag
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Joshua Colclough

Developed game: raylib
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Joshua Fan

Developed game: Mindustry
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Joshua Fehler

Developed game: Ren'Py
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Joshua Filby

Developed game: RuneLite
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Joshua Grams

Developed game: Godot
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Joshua Granick

Developed games: HaxeFlixel, OpenFL
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Joshua McKenty

Developed game: OpenFL
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Joshua Minor

Developed game: LIKO-12
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Joshua Moerman

Developed game: OpenRCT2
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Joshua Reisenauer

Developed game: raylib
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Joshua Scoggins

Developed games: Aleph One, Yamagi Quake II
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Joshua Skelton

Developed game: DelverEngine
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Joshua Stewart

Developed game: xu4
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Joshua Wilson

Developed game: Crossfire
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Joshua Yockey

Developed game: MegaMek
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joshuagiles

Developed game: Cataclysm: Dark Days Ahead
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joshuarobinson

Developed game: Solarus
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Josip Komljenović

Developed game: pygame
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jostephd

Developed games: Endless Sky, The Battle for Wesnoth
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Josua Grawitter

Developed games: OpenMW, TES3MP
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Josue Acevedo

Developed game: OpenRCT2
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José Cadete

Developed games: Augustus, Julius
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José Millán Soto

Developed game: Qt
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José Robson Mariano Alves

Developed game: Colobot: Gold Edition
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José Zanni

Developed game: Glest
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Jotabe

Developed game: Argentum Online
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JotaPeRL

Developed game: XMage
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Jotham

Developed game: Thousand Parsec
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Journeyman

Developed game: Open Yahtzee
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Jozef

Developed game: Terasology
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Jozef Behran

Developed game: Minetest
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Jozef Prídavok

Developed game: COCOS2D-X
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João Rodrigues

Developed games: Freeminer, Minetest, OpenSpades
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JP Cimalando

Developed games: DXX-Rebirth, Shockolate
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JP LeBreton

Developed games: GZDoom, ZDoom
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jpaul_d

Developed game: FunLabyrinthe
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jpeg

Developed game: NLarn
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jrb0001

Developed game: OpenRA
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JRF-github

Developed game: Jagged Alliance 2 Stracciatella
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jrivany

Developed games: OpenMW, TES3MP
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jsd1982

Developed games: Odamex, OpenRA
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jseah

Developed game: Zero-K
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jsee23

Developed game: Qt
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jsm174

Developed game: Visual Pinball
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JTippetts

Developed game: Urho3D
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Jtsessions

Developed game: Terasology
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Juan Borda

Developed game: OGRE
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Juan Dalmasso

Developed game: Argentum Online
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Juan Irigoien

Developed game: Tux Paint
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Juan J. Pérez

Developed game: Polis
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Juan Linietsky

Developed game: Godot
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Juan Martín Sotuyo Dodero

Developed game: Argentum Online
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Juanmz

Developed game: Argentum Online
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Juergen Widmann

Developed game: FreeCol
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Juha Henrikki Merikallio

Developed game: Planetary Hoppers
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Juha Holopainen

Developed game: Spice Trade
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Juhana Leinonen

Developed game: Undum
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Juhana Paavola

Developed game: melonJS
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Juhani Numminen

Developed games: Freeminer, Minetest, Pentobi
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juj

Developed game: Urho3D
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Jujucece

Developed game: pyRacerz
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JuKu

Developed game: Ilarion
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Jules-A

Developed game: DeSmuME
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Julia Nechaevskaya

Developed games: Chocolate Doom, DOOM Retro
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Julia Pinheiro

Developed game: OpenRCT2
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Julian

Developed games: AssaultCube, VDrift
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Julian Bradfield

Developed game: Mah-Jong
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Julian Murgia

Developed game: Godot
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Julian Oliver

Developed game: LevelHead
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Julian Ospald

Developed game: Lix
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Julian Paolo Thiry

Developed game: Lexica
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Julian Smith

Developed game: FlightGear
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Julian Smythe

Developed game: Allegro
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Julian Uy

Developed game: Ren'Py
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julian.jimenez

Developed game: star-control2
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Juliano Leal Goncalves

Developed game: DevilutionX
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Julians

Developed game: Hale
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JulianThijssen

Developed game: glPortal
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Julien Cassignol

Developed game: VASSAL
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Julien Jorge

Developed game: Plee the Bear
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Julien Nguyen

Developed game: FlightGear
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Julien Seinturier

Developed game: jMonkeyEngine
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Julien Templier

Developed game: ScummVM
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Julien Viala

Developed game: FreeCol
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Julien Villegas

Developed game: libGDX
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Jummit

Developed game: Godot
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Jun Hyeon, Nam

Developed game: COCOS2D-X
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Jun Kim

Developed game: Terasology
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June Rhodes

Developed game: MonoGame
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Jungy

Developed game: Rails: an 18xx game system
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Junji Takakura

Developed game: libGDX
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Juozas

Developed game: Minetest
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Juraj Michalek

Developed game: Atomic Tanks
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Juraj Oravec

Developed game: glPortal
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Jure Repinc

Developed game: Thousand Parsec
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Juriy Petrochenkov

Developed game: OpenTTD
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jurkan

Developed game: Source of Tales
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Jussi Lind

Developed game: Dust Racing 2D
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Jussi Pakkanen

Developed game: Doom Legacy
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Jussi Rautio

Developed game: Planetary Hoppers
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Jussi Toivola

Developed game: pygame
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JustAnotherGuid

Developed games: Devilution, DevilutionX
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Justin (Tuxinator) Davis

Developed game: Open RPG Maker
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Justin Aquadro

Developed game: MonoGame
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Justin Blanchard

Developed games: Naev, PyChess
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Justin Bowen

Developed game: MegaMek
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Justin Espedal

Developed game: OpenFL
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Justin Godesky

Developed game: XMage
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Justin Gottula

Developed games: OpenLoco, OpenRCT2
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Justin Hamilton

Developed game: libGDX
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Justin Hawkwood

Developed game: COCOS2D-X
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Justin Herlehy

Developed game: XMage
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Justin Jacobs

Developed games: C-Dogs SDL, Flare, FreeBlocks
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Justin Kelly

Developed game: JiGS Interactive Game System
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Justin Love

Developed game: One Hour One Life
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Justin Nicholson

Developed games: Naev, Nox Imperii
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Justin Shapcott

Developed game: libGDX
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Justin Steele

Developed game: Daggerfall Unity
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Justin Trotter

Developed game: unitystation
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Justin Warwick

Developed game: Space Nerds In Space
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Justin Yanke

Developed game: TrueCraft
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Justo Delgado

Developed games: Godot, HaxeFlixel, OpenFL
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Jute Gyte

Developed game: Blasphemer
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Juvinious

Developed game: PainTown
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juvinious

Developed game: PainTown
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Juzzephe

Developed game: RuneLite
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jwmelto

Developed game: BZFlag
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jyelon

Developed game: Panda3D
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Jyrki Vesterinen

Developed game: The Battle for Wesnoth
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Jz Pan

Developed game: Me and My Shadow
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JZomerlei

Developed game: RuneLite
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Ján Jančár

Developed game: Godot
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Jérôme

Developed game: jMonkeyEngine
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Jérôme Arzel

Developed game: Q-Gears
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Jérôme Bolot

Developed game: TecnoballZ
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Jérôme GULLY

Developed game: Godot
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Jérôme Leclercq

Developed game: Nazara Engine
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Józef Kucia

Developed game: FreedroidRPG
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Jörg Bornemann

Developed game: Qt
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Jørgen P. Tjernø

Developed games: CorsixTH, ges-code, GoldenEye: Source
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Jørn Lomax

Developed game: OpenRCT2
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Jüri Valdmann

Developed game: Qt
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Jānis Legzdiņš

Developed game: Korax' Heritage
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Jānis Rūcis

Developed game: Neverball
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Jřrgen Vasshaug

Developed game: FreeCol
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