Games starting with A

Inspiration: Space Federation: Galactic Conquest
Developer: Michael Harmer

Homepage: aplanetsrevenge
Download: aplanetsrevenge/files/aplanetsrevenge/apr-1.0-alpha

Technical info
Code languages: Python
Code licenses: GPL-3.0
Code repositories: osgames/aplanetsrevenge.git
Code dependencies: curses

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Developer: Kenta Cho

Homepages: a7xpg.sourceforge.net, www.asahi-net.or.jp/~cs8k-cyu/windows/a7xpg_e.html
Download: a7xpg/files/a7xpg

Technical info
Code languages: D
Code licenses: 2-clause BSD
Code dependencies: libvorbis, SDL

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Developers: Alex Clark, Gabor Torok, Pedro Izecksohn

Homepages: abe.sourceforge.net, abe
Download: abe/files

Technical info
Code languages: C
Code licenses: GPL-2.0
Code repositories: osgames/abe.git, abe.cvs.sourceforge.net
Code dependencies: SDL
Build system: Autoconf

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Platform: Dark game.

Inspiration: Abuse

Homepage: abuse.zoy.org
Download: abuse.zoy.org/wiki/download

Technical info
Code languages: C++, Lisp
Code licenses: Public domain, GPL-2.0, WTFPL
Code repositories: svn://svn.zoy.org/abuse/abuse/trunk
Code dependencies: SDL
Assets licenses: Public domain, Custom

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Inspiration: Abuse

Homepage: antonior-software.blogspot.com/2016/05/abuse-1996-sdl-port-09a.html

Technical info
Code languages: C++, Lisp
Code licenses: Custom, Public domain, GPL-2.0, WTFPL
Code repositories: antrad/Abuse_1996.git
Code dependencies: SDL2
Build system: CMake

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Platform: See also [another clone](https://achtungkurve.com/).

Inspiration: Achtung, die Kurve!
Developer: Simon Alling

Homepage: kurve.se
Play online: kurve.se

Technical info
Code languages: JavaScript
Code licenses: AGPL-3.0
Code repositories: SimonAlling/kurve.git( since 2016, )

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Developer: Riley Rainey

Homepages: packages.debian.org/sid/acm, Archive: 20130114223737/http://www.websimulations.com
Download: packages.debian.org/source/sid/acm

Technical info
Code languages: C
Code licenses: GPL-2.0
Assets licenses: GPL-2.0

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Platform: Id Software's Id-tech-4-BFG ported to Ada

Developers: AdaDoom3, Adrian-Ken Rueegsegger, Michael Hardeman, mulander, OneWingedShark

Homepage: AdaDoom3/AdaDoom3

Technical info
Code languages: Ada
Code licenses: GPL-3.0
Code repositories: AdaDoom3/AdaDoom3.git( since 2013, )

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Platforms: Stargate / Portal fantasy setting.

Inspiration: Sokoban
Developer: fastrgv

Homepage: fastrgv/AdaGate
Download: fastrgv/AdaGate/releases

Technical info
Code languages: Ada
Code licenses: GPL-3.0
Code dependencies: OpenGL, SDL2

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Developer: Andy Southgate

Homepages: Archive: 20180818173613/http://www.mushware.com, packages.qa.debian.org/a/adanaxisgpl.html
Download: packages.debian.org/sid/adanaxisgpl

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code dependencies: GLUT
Assets licenses: GPL-2.0

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Platform: Set in ancient Persia.

Developer: fastrgv

Homepage: fastrgv/AdaVenture
Download: fastrgv/AdaVenture/releases

Technical info
Code languages: Ada
Code licenses: GPL-3.0
Code repositories: fastrgv/AdaVenture.git( since 2016, )

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Inspiration: Battle Isle series
Developers: Armin Bajramovic, Christian Schramm, Dorfdrull, Frederik Kesting, Martin Bickel, Michael Moerz, Torsten Maekler, ValHaris, valuial

Homepages: www.asc-hq.org, asc-hq
Media: Advanced Strategic Command

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code repositories: ValHaris/asc-hq.git( since 2019, )
Build system: Autoconf

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Inspiration: Moai
Developer: Sandy Maguire

Homepage: isovector/adventure

Technical info
Code languages: Lua
Code licenses: MIT
Code repositories: isovector/adventure.git( since 2011, )

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Inspiration: Night Stalker

Homepage: perso.b2b2c.ca/~sarrazip/dev/afternoonstalker.html
Download: perso.b2b2c.ca/~sarrazip/dev/afternoonstalker.html#download

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code dependencies: SDL

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Platform: AI client development testbed.

Homepage: code.google.com/archive/p/aiwars

Technical info
Code languages: Python
Code licenses: MIT
Code repositories: suprafun/aiwars.git( since 2015, ), code.google.com/archive/p/aiwars/source
Code dependencies: Pillow, pygame

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Platforms: Maybe contact author and try to get a copy of the svn.

Homepages: icculus.org/airstrike, packages.debian.org/stable/games/airstrike, Archive: 20061012090550/http://fluff.dyndns.org/cgi-bin/trac.cgi

Technical info
Code languages: C
Code licenses: GPL-2.0
Assets licenses: GPL-2.0

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Platform: Collection of patience games.

Developers: Alexander Shopov, Alexandre Franke, Anders Jonsson, Andika Triwidada, Andre Klapper, annoab, Ask Hjorth Larsen, aurisc4, Branko Kokanovic, Bruce Cowan, Cedric Valmary, Changwoo Ryu, Christian Kirbach, Claude Paroz, Daniel Nylander, Danylo Korostil, dasj19, dmtrs32, dmustieles, Dmytro-bit, Dušan Kazik, enrico-br, Esme, etkinator, Fran Diéguez, Gil Forcada Codinachs, gogogogi, Ihar Hrachyshka, Ivar Smolin, Iñaki Larrañaga Murgoitio, Jan Kyselica, Jason D. Clinton, Javier Jardón, Jeremy Bicha, Jordi Mas, kelemeng, Kristjan, Leonardo Ferreira Fontenelle, Marv-CZ, Matej, Milo Casagrande, Miloslav Trmač, mirosnik1, nma-2009, pesder, Petr Kovar, Philip Withnall, Piotr Drąg, Rafael Fontenelle, Robert Ancell, Rūdolfs Mazurs, sicklylife.jp, Stéphane Raimbault, Sveinn í Felli, Takeshi Aihana, Thomas H. P. Andersen, Tim Horton, tmtfx, Tom Tryfonidis, Uyghur, Ville-Pekka Vainio, Vincent Untz, William Jon McCann, Yanko Kaneti, Yaron Shahrabani, Yuri Chornoivan, Yuri Myasoedov

Homepage: wiki.gnome.org/Apps/Aisleriot
Download: GNOME/aisleriot/releases

Technical info
Code languages: C, Scheme
Code licenses: GPL-3.0
Code repositories: GNOME/aisleriot.git( since 2012, )
Assets licenses: GPL-3.0
Build system: Make

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Inspiration: Zarch
Developer: Eben Upton

Homepages: ajax3d.sourceforge.net, ajax3d
Download: ajax3d/files/ajax3d

Technical info
Code languages: JavaScript
Code licenses: GPL-2.0
Code repositories: osgames/ajax3d.git, ajax3d.cvs.sourceforge.net

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Platform: Remake of Akalabeth: World of Doom aka Ultima 0. Aklabeth is a remake of Akalabeth, or 'Ultima 0' as it is often called, that was programmed by Richard Garriott for the Apple II computer in 1980. Aklabeth 1.0 has been written by Paul Robson and was originally released in 2004 under the GPL 2. His homepage has disappeared a long time ago.

Inspiration: Akalabeth: World of Doom
Developers: kantharos, Paul Robson

Homepage: aklabeth
Download: aklabeth/files/aklabeth

Technical info
Code languages: C
Code licenses: GPL-2.0

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Platforms: Continuation of Bungie's Marathon 2 FPS game engine.

Inspirations: Marathon, Marathon 2: Durandal, Marathon Infinity
Developers: 0xMk, Aaron Davies, Alexander Strange, Alexei Svitkine, Benoît Hauquier, Catherine Seppanen, Chris Hallock, Chris Hellberg, Christian Bauer, Daniel Blezek, darealshinji, Gregory Smith, hogdotmac, Jason Yates, Jeremiah Morris, Jeremy Parsons, Jesse Simko, Joshua Scoggins, Loren Petrich, Michael D. Adams, Mike Benonis, Nigel, Solra Bizna, TrajansRow

Homepages: alephone.lhowon.org, Aleph-One-Marathon/alephone/wiki, marathon
Download: marathon/files

Technical info
Code languages: C++, Lua
Code licenses: GPL-3.0
Code repositories: Aleph-One-Marathon/alephone.git( since 2015, ), svn.code.sf.net/p/marathon/code

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Developers: Anders Svensson, Johan Peitz, Paul Wise

Homepages: allegator.sourceforge.net, allegator
Download: allegator/files

Technical info
Code languages: C
Code licenses: GPL-2.0
Code repositories: git.code.sf.net/p/allegator/alex4
Code dependencies: Allegro
Assets licenses: GPL-2.0
Build system: Make

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Platform: Trading game forked off the source of both Black Nova Traders and Nova Game Systems software and inspired by the popular BBS game of TradeWars.

Inspiration: TradeWars
Developers: Mark Dickenson, Rick Thomson, tarnus

Homepages: www.aatraders.com, aatrade
Download: aatrade/files

Technical info
Code languages: PHP
Code licenses: GPL-2.0
Code repositories: tarnus/aatraders.git( since 2013, ), osgames/aatraders.git @add

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Inspirations: OGRE, Urho3D
Developer: Amer Koleci

Homepage: amerkoleci/alimer

Technical info
Code languages: C++
Code licenses: MIT
Code repositories: amerkoleci/alimer.git( since 2018, )
Build system: CMake

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Inspirations: Oddworld: Abe's Exoddus, Oddworld: Abe's Oddysee
Developers: d3nwah, FrozenFish24, GproKaru, Jay Peet, Kari1993, L. P., Michael Grima, mouzedrift, Paul, pryon, THEONLYDarkShadow, UltraStars3000

Homepage: paulsapps/alive

Technical info
Code languages: C++
Code licenses: MIT
Code repositories: AliveTeam/alive_reversing.git( since 2018, ), paulsapps/alive.git @add( since 2015, )
Code dependencies: SDL2

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Platform: Sci-Fi roguelike and tactical squad combat game.

Developers: Andres Löh, Dan Keefe, Mikolaj Konarski

Homepage: www.allureofthestars.com
Play online: www.allureofthestars.com/play

Technical info
Code languages: Haskell
Code licenses: AGPL-3.0
Code repositories: AllureOfTheStars/Allure.git( since 2010, )
Code dependencies: LambdaHack, SDL
Assets licenses: AGPL-3.0
Build system: Make

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Inspiration: Ambermoon

Homepage: pyrdacor/ambermoon.net
Downloads: Pyrdacor/Ambermoon.net#download, Pyrdacor/Ambermoon.net/releases

Technical info
Code languages: C#
Code licenses: GPL-3.0
Code repositories: Pyrdacor/Ambermoon.net.git

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Developers: Chris Laurel, Jonas Spillmann, Lukas Löhrer, Patrick J. Naughton

Homepages: packages.debian.org/stable/games/amphetamine, Archive: 20101023090423/http://homepage.hispeed.ch/loehrer/amph/amph.html

Technical info
Code languages: C
Code licenses: GPL-2.0
Code dependencies: SDL
Assets licenses: GPL

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Platform: Find as many words as possible in the time available.

Developers: Alan Grier, Colm Gallagher, Shard, Thomas Plunkett, Toby A. Inkster

Homepage: Archive: 20150412072808/http://www.coralquest.com/anagramarama
Download: Archive: 20160315052754/http://www.coralquest.com/anagramarama/download.html

Technical info
Code languages: C
Code licenses: GPL-2.0
Assets licenses: GPL-2.0

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Developer: Drummyfish

Homepage: drummyfish/anarch

Technical info
Code languages: C
Code licenses: CC0
Code repositories: drummyfish/anarch.git
Code dependencies: raycastlib
Assets licenses: CC0

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Inspiration: Heroes of Might and Magic III
Developers: Archiboldian Cartheniscope, BLBLBL, Bruce Olivier, Caleb Joseph, Calvin, CameronFoss, ChengYuuu, Clément Foucault, Cong, Dread Knight, Dusty Williams, Henrik Aarnio, Ignacio Cartes, James Archbold, Janne, Jordan Barnes, Karl Tiedt, Kaylina Savela, leopoldwe, marcel-odya, Matt Horning, Max0nyshchenko, nemui, Patryk Bieszke, randompast, Raul Humberto Lopez Lopez, Ray Nathan Low, Robin Van den Broeck, Sean Diamond, Sebastian Lugo, Shane Walsh, SlimeTP, Spencer Zhang, TheSeally, Tilman Raendchen, Tristan Kernan, vampiressae, Willian Gustavo Veiga, yoel123, zaryanz

Homepage: ancientbeast.com

Technical info
Code languages: JavaScript
Code licenses: AGPL-3.0
Code repositories: FreezingMoon/AncientBeast.git( since 2011, )
Code dependencies: Phaser

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Platform: Quest-driven roguelike fantasy dungeon crawler RPG with a powerful story. Contains non-free assets.

Developers: Allan Nordhøy, Anderson Nogueira, Bervianto Leo Pratama, carceris-magister, Chriz76, David García Garzón, fifa1988, finnomeno, Firefly130984, Heimen Stoffels, Hummus Samurai, Ian Haase, Jiri Daněk, Lucas Delvallet, Lunovox, Mauro Carvalho Chehab, Michael L., Moerit, Moonbood, Nut, Olivier Dragon, Oskar Wiksten, osoitz, Richard, satanas99, Satnam S Virdi, Scott Devaney, Silvério Santos, sosozozo, Valentin, Viktar Vaŭčkievič, Weblate (bot), Wuerfelbruder, Xaver-Entropia, Zizkin, Zukero

Homepages: www.andorstrail.com, code.google.com/archive/p/andors-trail
Download: f-droid.org/packages/com.gpl.rpg.AndorsTrail

Technical info
Code languages: Java
Code licenses: GPL-2.0
Code repositories: Zukero/andors-trail.git( since 2013, )

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Developers: Alessandro Dal Bello, alondene, Brainsucker92, Jeroen Carolus, TimmyT123

Homepage: www.jwtc.nl
Download: www.jwtc.nl/downloads

Technical info
Code languages: Java, C++
Code licenses: MIT
Code repositories: jcarolus/android-chess.git( since 2014, )
Build system: Gradle

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Developers: 3m4r, ajps, Alex Mooney, Anna Sidwell, artes-liberales, backwardsEric, Bardur Arantsson, Ben Semmler, Chris Carr, CJNyfalt, Colin Woodbury, Cuboideb, Dag Arneson, David Barr, David Medley, Eastwind921, Erik Osheim, fizzix, jenschou, kjfletch, Kusunose Toru, LostTemplar, LuthienCeleste, Mikolaj Konarski, Nick McConnell, pete-mack, Peter Denison, ridiculousfish, Ryan Schmidt, Spenser Black, sulkasormi, Tim Schumacher

Homepage: rephial.org
Media: Angband
Download: rephial.org/release

Technical info
Code languages: C
Code licenses: GPL-2.0
Code repositories: angband/angband.git( since 2010, )
Code dependencies: SDL

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Platform: Angry Birds game.

Developer: Estevao Fonseca

Homepage: estevaofon/angry-birds-python

Technical info
Code languages: Python
Code licenses: MIT
Code repositories: estevaofon/angry-birds-python.git( since 2014, )
Code dependencies: pygame, pymunk

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Platforms: Fast paced combat with a diverse arsenal.

Developer: DelphaDesign

Homepages: annexconquer.com, bitbucket.org/annexctw
Download: annexconquer.com/downloads

Technical info
Code languages: Lua
Code licenses: GPL-3.0
Code repositories: bitbucket.org/annexctw/annex.git
Code dependencies: MegaGlest Engine
Assets licenses: CC-BY-SA

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Platform: Port of the original Ares code base that was open sourced in 2008.

Inspiration: Ares
Developers: Chris Pickel, Scott McClaugherty

Homepage: arescentral.org/antares

Technical info
Code languages: C++
Code licenses: LGPL-3.0
Code repositories: arescentral/antares.git( since 2011, )

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Inspiration: Ultima III: Exodus
Developer: Eric W. Brown

Homepage: feneric.itch.io/anteform

Technical info
Code languages: Lua
Code licenses: GPL-3.0
Code repositories: Feneric/Anteform.git( since 2019, )
Code dependencies: PICO-8

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Platforms: You have to take your opponents piece if you can.

Developers: Baris Yuksel, Hongping Lim, Hooria Komal, Tamer Karatekin

Homepage: antichess
Download: antichess/files/antichess/1.0

Technical info
Code languages: Java
Code licenses: MIT
Code repositories: osgames/antichess.git, antichess.cvs.sourceforge.net
Build system: Ant

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Developer: yiotro

Homepage: yiotro/Antiyoy

Technical info
Code languages: Java
Code licenses: GPL-3.0
Code repositories: yiotro/Antiyoy.git( since 2016, )
Code dependencies: libGDX
Build system: Gradle

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Platform: Engine for Frogatto and Friends.

Developers: Alexander van Gessel, Anthony J. Bentley, anura-worker, Autofire, davewx7, David Roberts, galegosimpatico, garbageslam, Joni Orponen, Kristina Simpson, marcavis, Richard Kettering, Yaohan Chen

Homepage: anura-engine/anura

Technical info
Code languages: C, C++
Code licenses: zlib
Code repositories: anura-engine/anura.git( since 2013, )

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Inspiration: tower defense

Homepage: reloZid/android-anuto
Download: f-droid.org/en/packages/ch.logixisland.anuto

Technical info
Code languages: Java
Code licenses: GPL-2.0
Code repositories: reloZid/android-anuto.git
Build system: Gradle

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Inspiration: Angry Birds

Homepage: ar-/apple-flinger
Download: f-droid.org//packages/com.gitlab.ardash.appleflinger.android

Technical info
Code languages: Java
Code licenses: GPL-3.0
Code repositories: ar-/apple-flinger.git
Build system: Gradle

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Platform: Fly an airplane, fire missiles, drop bombs, destroy enemy buildings and planes.

Developers: Mark Harman, Mark Snellgrove

Homepage: Archive: 20110819212117/http://www.fishies.org.uk/apricots.html

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code dependencies: SDL
Assets licenses: GPL
Build system: Make

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Inspiration: Aquastax
Developer: Steve Longhurst

Homepage: LongSteve/aquastax

Technical info
Code languages: JavaScript
Code licenses: MIT
Code repositories: LongSteve/aquastax.git( since 2016, )

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Inspiration: Tempest

Homepage: stephank.github.io/arashi-js
Play online: stephank.github.io/arashi-js

Technical info
Code languages: JavaScript
Code licenses: GPL-2.0
Code repositories: stephank/arashi-js.git( since 2010, )

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Platform: Real-time, physics based renderer.

Developers: Brady Jessup, moekaz

Homepage: Ershany/Arcane-Engine

Technical info
Code languages: C++
Code licenses: MIT
Code repositories: Ershany/Arcane-Engine.git( since 2016, )
Code dependencies: ImGUI, OpenGL
Build system: Visual Studio

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Platform: Focused not just on fighting, but on story and character development.

Developers: Elle, Henry Hirsch, Miguel de Dios Matias, Nathan Mills

Homepages: Archive: 20190304014608/http://www.jordantrudgett.com/ardentryst, Archive: 20201112032958/https://sourceforge.net/projects/ardentryst, Archive: 20180624012340/https://www.pygame.org/project-Ardentryst-596-.html
Downloads: Archive: 20180531203109/http://www.jordantrudgett.com/ardentryst/ardentryst-downloads, Archive: 20201023111605/https://sourceforge.net/projects/ardentryst/files

Technical info
Code languages: Python
Code licenses: GPL-3.0
Code repositories: ardentryst/ardentryst.git( since 2016, )
Code dependencies: pygame

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Developers: Stephen Carlyle-Smith, Steve Smith

Homepage: SteveSmith16384/AresDogfighter
Download: stephensmith.itch.io/aresdogfighter

Technical info
Code languages: Java
Code licenses: GPL-3.0
Code repositories: SteveSmith16384/AresDogfighter.git( since 2019, )
Code dependencies: jMonkeyEngine
Assets licenses: (See relevant asset folders)

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Platform: See also: [spin-off](https://github.com/horacioMartinez/argentumonline.io), [server mod](https://sourceforge.net/projects/aoserverbyshura/).

Developers: abusiv0, Alejandro Santos, Alexis Caraballo, Amraphen, AOSecProj, Borouse, BoxStar, BrianPr, cucsijuan, Cuicui, Fakkerz, FrancoBenito, Fredy Treboux, Ignacio Arminas, Joaquín, Jotabe, Juan Dalmasso, Juan Martín Sotuyo Dodero, Juanmz, Lautaro Marino, Leandro Mendoza, LoreleiArgAoLibre, Lucas, Luciano Contartese, Marco Vanotti, Mateo, Mauro Segoviano, Natanael Andrés Garrido, Neox189, Pablo Ignacio Márquez, Pato, Pato Torres, pLuS, ReyarB, Ronin, Samuel Fernandez, WalterSit0, Zaxtor

Homepages: www.comunidadargentum.com, www.argentumonline.com.ar, morgoao, argentumonline, ao-libre
Downloads: www.comunidadargentum.com/descargas, morgoao/files

Technical info
Code languages: Visual Basic
Code licenses: GPL-2.0, AGPL-3.0
Code repositories: ao-libre/ao-server.git( since 2018, ), ao-libre/ao-cliente.git @add( since 2018, ), ao-libre/ao-worldeditor.git @add( since 2020, ), morgoao.cvs.sourceforge.net

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Platform: Simple action game modeled after the lightcycle sequence of the movie Tron.

Inspiration: Snake
Developers: Alex E. Kelly, Andreas Bombe, armanelgtron, blane, Charlie Head, Dave Fancella, dave iceman, DLH, Edmund Keefe, epsy, Fred, klaxnek, Kurt Johnson, Luke Dashjr, Luke-Jr, Manuel Moos, Manuel Moos, Matías Pino, Menno de Bell, Michael Lechtermann, MocI, Philippe Villeneuve, Self_Destructo, Wrzlprnft, Yann Kaiser, yarrt, Your_mom_arma

Homepages: www.armagetronad.org, armagetronad
Media: Armagetron Advanced
Download: www.armagetronad.org/downloads.php

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code repositories: armagetronad/armagetronad.git, ArmagetronAd/armagetronad.git( since 2019, ), svn.code.sf.net/p/armagetronad/code

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Developer: Germán Blando

Homepage: armies
Download: armies/files

Technical info
Code languages: C++
Code licenses: GPL-3.0
Code repositories: osgames/armies.git

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Platform: Helicopter shooter.

Inspiration: Armor Alley
Developer: Scott Schiller

Homepage: www.schillmania.com/armor-alley

Technical info
Code languages: JavaScript
Code licenses: CC-BY-NC-3.0
Code repositories: scottschiller/ArmorAlley.git( since 2013, )
Assets licenses: ISC, CC-BY-NC-3.0

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Platform: All graphics drawn by the author, but uses sound effects extracted from Dune II.

Inspirations: Command & Conquer, Dune 2
Developer: Stefan Hendriks

Homepage: arrakis.dune2k.com/arrakis.html
Download: arrakis.dune2k.com/downloads.html

Technical info
Code languages: Basic
Code licenses: Custom

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Inspiration: Artillery Duel

Homepage: code.google.com/archive/p/artillery-duel-reloaded
Download: code.google.com/archive/p/artillery-duel-reloaded/downloads

Technical info
Code languages: Python
Code licenses: GPL-3.0

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Platform: Port of Arx Fatalis.

Inspiration: Arx Fatalis
Developers: adejr, Chris Gray, Daniel Scharrer, David Stejskal, Dimoks, Dreamer, Eli2, Erik Lund, Frederik Gelder, Jan-Hendrik Peters, Jonathan Powell, Lubosz Sarnecki, Olzaq, Philippe Cavalaria, Thomas L

Homepage: arx-libertatis.org
Media: Arx Libertatis
Download: arx-libertatis.org/download

Technical info
Code languages: C++
Code licenses: GPL-3.0
Code repositories: arx/ArxLibertatis.git( since 2011, )
Build system: CMake

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Inspiration: Simon
Developer: Tim Pietrusky

Homepage: timpietrusky.github.io/asdf
Play online: timpietrusky.github.io/asdf

Technical info
Code languages: JavaScript
Code licenses: MIT
Code repositories: TimPietrusky/asdf.git( since 2012, )

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Inspiration: CUBE engine
Developers: Alejandro V. Garcia, Andrew D, Bukz, Cleaner, Cristian, Cristian Vlasceanu, driAn, Elliot Lockwood, flow, GeneralDisarray, Glen Masgai, Julian, Lee Salzman, Lucas Gautheron, makkE, Mr.Floppy, Nieb, Rafael C. Barreto, RandumKiwi, Rick, Ricky Ratzlaff, Ronald Reagan, RonaldReagan, Sebastian, sireus, stef, szyk (grenadier), Toca

Homepages: assault.cubers.net, actiongame
Media: AssaultCube

Technical info
Code languages: C, C++
Code licenses: Custom
Code repositories: assaultcube/AC.git( since 2013, )
Code dependencies: SDL
Build system: Make

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Inspiration: AstroMenace
Developers: Alistair Findlay, Dmitry Marakasov, Mikhail Kurinnoi, Mikkhail Kurin, viewizard

Homepages: www.viewizard.com, openastromenace
Download: viewizard.com/download.html

Technical info
Code languages: C++, C
Code licenses: GPL-3.0
Code repositories: viewizard/astromenace.git( since 2018, )
Build system: CMake

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Inspiration: Fall Down
Developer: Cong

Homepage: Nebuleon/ativayeban

Technical info
Code languages: C, C++
Code licenses: GPL-2.0
Code repositories: Nebuleon/ativayeban.git( archived, since 2014, )
Code dependencies: SDL

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Inspirations: Scorched Earth, Worms
Developers: Billy Buerger, CtHx Ъ, Jesse Smith, Juraj Michalek, Keilaron, Neil Graeme Matthews, Sven Eden, Thomas Hudson, ubr47k

Homepages: atanks.sourceforge.net, atanks
Download: atanks/files

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code repositories: git.code.sf.net/p/atanks/atanks, osgames/atanks.git @add
Code dependencies: Allegro
Assets licenses: GPL

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Platform: Faithful remake of, and a tribute to, Atomix, a classic puzzle game created by Softtouch & RoSt and published in 1990 by the Thalion Software company.

Inspiration: Atomix
Developer: Mateusz Viste

Homepages: atomiks.sourceforge.net, atomiks
Download: atomiks/files

Technical info
Code languages: C
Code licenses: GPL-3.0
Code repositories: osgames/atomiks.git, svn.code.sf.net/p/atomiks/code
Assets licenses: Custom

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Platform: A puzzle game in which you have to build full molecules.

Inspiration: Atomix
Developers: Alan01, Anders Jonsson, aurisc4, dmustieles, evfool, Javier Jardón, kelemeng, Mario Blättermann, Marv-CZ, Matej, Piotr Drąg, Rafael Fontenelle, Thomas H. P. Andersen, Yosef Or Boczko

Homepage: wiki.gnome.org/Apps/Atomix

Technical info
Code languages: C
Code licenses: GPL-2.0
Code repositories: GNOME/atomix.git( since 2012, )

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Platform: Multiplayer Online Role Playing Game (MORPG) with 2D isometric graphics based on Daimonin and Crossfire.

Inspirations: Crossfire, Daimonin
Developers: Alex Tokar, Brian Angeletti, Edwin Miltenburg, Lippy13

Homepages: www.atrinik.org, atrinik

Technical info
Code languages: C, Python
Code licenses: GPL-2.0
Code repositories: atrinik/atrinik.git( since 2014, )
Build system: CMake

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Developers: alexandre, Audoux, Forest Darling, Gilles Oppeneau, leyral, lusum, Quentin DUSOULIER, Raphael Goulais, Tim Felgentreff, tribunal, Verrier Cyrille

Homepage: attal
Download: attal/files/Attal

Technical info
Code languages: C++
Code licenses: GPL-2.0
Code repositories: osgames/attal.git, attal.cvs.sourceforge.net

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Inspiration: Caesar 3
Developers: Alexey, Bianca van Schaik, devnoname120, HoratioVex, HyperJeanJean, José Cadete, Keriew, nwtour, rsn8887, Vittorio Mattei, whgest, William Hardy Gest

Homepage: Keriew/augustus
Download: Keriew/augustus/releases

Technical info
Code languages: C, C++
Code licenses: AGPL-3.0
Code repositories: Keriew/augustus.git( since 2020, )
Code dependencies: SDL2
Assets licenses: Commercial
Build system: CMake

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Platforms: Base building game with artificial life simulation. License information could be added to game download.

Homepages: Archive: 20200206173823/http://aussenposten.gamejs.org, forum.freegamedev.net/viewtopic.php?t=5910&p=64059
Download: aussenposten.gamejs.org/download.html

Technical info
Code languages: JavaScript
Code licenses: MIT
Code dependencies: GameJs
Assets licenses: CC-BY-SA

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Platform: Relatively easy to win but feature rich fantasy roguelike game with a highly interactive world.

Developers: Brian Angeletti, Siarhei Siamashka, Vadim Gaidukevich

Homepages: avanor.sourceforge.net, avanor
Download: avanor/files

Technical info
Code languages: C++, Lua
Code licenses: GPL-2.0
Code repositories: osgames/avanor.git, svn.code.sf.net/p/avanor/code

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Developer: Fedor 'TheMozg' Kalugin

Homepage: TheMozg/awk-raycaster/wiki

Technical info
Code languages: AWK
Code licenses: MIT
Code repositories: TheMozg/awk-raycaster.git

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Platforms: Metroidvania with vector graphics.

Inspiration: Metroidvania
Developers: Lucas O. Wagner, Matthew D. Steele

Homepage: Archive: 20210703111943/https://mdsteele.games/azimuth

Technical info
Code languages: C
Code licenses: GPL-3.0
Code repositories: mdsteele/azimuth.git( since 2012, )
Code dependencies: SDL
Assets licenses: GPL-3.0
Build system: Make

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