opensourcegames/games/_all.md

All

• 0 A.D. (C, C++, GPL-2.0, beta)
• 2048 (JavaScript, MIT, mature)
• 3d.city (JavaScript, GPL-3.0, mature, inactive since 2016)
• A Planet's Revenge (Python, GPL-3.0, beta, inactive since 2008)
• AdaVenture (Ada, GPL-3.0, mature)
• Advanced Strategic Command (C++, GPL-2.0, mature)
• AI Wars (Python, MIT, beta, inactive since 2010)
• Aleph One: Marathon (C++, Lua, GPL-3.0, mature, inactive since 2015)
• Alien Assault Traders (PHP, GPL-2.0, beta, inactive since 2009)
• Allegro (C, zlib, mature)
• Ancient Beast (JavaScript, AGPL-3.0, mature)
• Andor's Trail (Java, GPL-2.0, beta)
• Angband (C, GPL-2.0, mature)
• Annchienta (C++, GPL-3.0, mature, inactive since 2009)
• Antares (C++, LGPL-3.0, beta)
• AntiChess (Java, MIT, mature, inactive since 2003)
• Ardentryst (Python, GPL-3.0, mature, inactive since 2009)
• Argentum Online (Visual Basic, GPL-2.0, beta, inactive since 2014)
• Arianne / Marauroa (Java, GPL-2.0, mature)
• Armagetron Advanced (C++, GPL-2.0, mature)
• Armies (C++, GPL-3.0, mature, inactive since 2007)
• Arx Libertatis (C++, GPL-3.0, mature)
• AstroMenace (C++, C, GPL-3.0, mature)
• Atlantis (C++, GPL-2.0, mature, inactive since 2016)
• Atomic Tanks (C++, GPL-2.0, mature, inactive since 2016)
• Atomiks (C, GPL-3.0, mature, inactive since 2015)
• Atomix (C, GPL-2.0, mature)
• Atrinik (C, Python, GPL-2.0, mature, inactive since 2016)
• Attal: Lords of doom (C++, GPL-2.0, mature, inactive since 2008)
• AutoREALM (C++, GPL-3.0, mature)
• Avanor (C++, Lua, GPL-2.0, beta, inactive since 2008)
• Ballerburg (C, Public domain, mature, inactive since 1987)
• Battle Tanks (C++, GPL-2.0, mature, inactive since 2009)
• Battlefield Java (Java, GPL-3.0, beta, inactive since 2011)
• Battleround (Java, Apache-2.0, beta, inactive since 2015)
• Battles of Antargis (C, C++, GPL-2.0, beta, inactive since 2014)
• Betrayer's Moon Tactics (JavaScript, GPL-2.0, beta, inactive since 2006)
• Biniax (C, zlib, mature, inactive since 2012)
• Birth of the Empires (C++, Custom, mature, inactive since 2016)
• BlackNova Traders (PHP, JavaScript, GPL-2.0, beta, inactive since 2012)
• Blender game engine (C++, GPL-2.0, mature)
• Blitzkrieg (Java, GPL-3.0, beta, inactive since 2012)
• Blobby Volley 2 (C++, GPL-2.0, mature, inactive since 2017)
• Blobwars: Metal Blob Solid (C++, GPL-2.0, mature)
• Block Attack - Rise of the Blocks (C++, GPL-2.0, mature)
• BlockOut II (C++, GPL-2.0, mature, inactive since 2014)
• Bombermaaan (C++, GPL-3.0, mature, inactive since 2010)
• Boost (C++ Libraries) (C++, Boost-1.0, mature)
• Bos Wars (C++, GPL-2.0, mature, inactive since 2013)
• Boson (C++, GPL-2.0, beta, inactive since 2006)
• Boulder Dash (Java, MIT, mature, inactive since 2015)
• Brain Workshop (Python, GPL-2.0, mature, inactive since 2011)
• BrowserQuest (JavaScript, MPL-2.0, mature)
• Brutal Chess (C++, GPL-2.0, beta, inactive since 2007)
• Bygfoot (Java, GPL-2.0, beta)
• BZFlag (C++, LGPL-2.1, MPL-2.0, mature)
• C-Dogs (C, GPL-2.0, mature)
• C-evo (Pascal, Public domain, GPL-3.0, mature, inactive since 2013)
• Cabbages and Kings (Python, MIT, mature)
• CaesarIA (C++, JavaScript, GPL-3.0, beta)
• Call to Power 2 (C++, Custom, mature)
• Candy Box 2 (Typescript, JavaScript, GPL-3.0, mature, inactive since 2013)
• Cart Life (AGS Script, Custom, mature, inactive since 2014)
• Castle Game Engine (Pascal, LGPL-2.0, mature)
• Castle of the Winds (JavaScript, MIT, beta)
• Cat Mother Dead Justice (C++, 3-clause BSD, GPL-2.0, beta, inactive since 2003)
• Cataclysm: Dark Days Ahead (C++, CC-BY-SA-3.0, mature)
• Cataclysm (C++, CC-BY-SA-3, beta, inactive since 2012)
• Catch Challenger (C++, GPL-3.0, mature)
• Celestron (Python, GPL-3.0, beta, inactive since 2012)
• Childsplay (Python, GPL-3.0, mature)
• Chocolate Doom (C, GPL-2.0, mature)
• Choria (C++, C, Lua, GPL-3.0, mature)
• Chromium B.S.U. (C++, Artistic License, mature)
• Civil (Python, GPL-2.0, beta, inactive since 2003)
• CivOne (C#, CC0, beta)
• Classic Blades of Exile (C++, GPL-2.0, mature)
• Clou! (C, Custom, beta)
• COCOS2D-X (C++, MIT, mature)
• Colobot (C++, GPL-3.0, mature)
• Colonization too (C++, GPL-2.0, beta, inactive since 2004)
• Colossal Cave Adventure (Python, Apache-2.0, mature)
• CommandoJS (JavaScript, CoffeeScript, MIT, beta, inactive since 2012)
• Conquests (C++, GPL-2.0, mature, inactive since 2012)
• Core War (C, Java, GPL-2.0, 2-clause BSD, mature)
• Corsix Theme Hospital (Lua, C++, MIT, mature)
• Crimson Fields (C++, GPL-2.0, mature, inactive since 2010)
• Crossfire (C, Java, GPL-2.0, mature)
• Crown and Cutlass (C++, Custom, beta, inactive since 2009)
• Crypto++ (C++, Boost-1.0, mature)
• D-Fend Reloaded (Pascal, GPL-3.0, mature, inactive since 2015)
• Daimonin (C, GPL-2.0, mature)
• Danger from the Deep (C++, GPL-2.0, beta, inactive since 2011)
• Dark Destiny (Java, JavaScript, GPL, mature, inactive since 2016)
• Dark Oberon (C++, GPL-2.0, mature, inactive since 2009)
• DarkCity (PHP, GPL-3.0, mature, inactive since 2012)
• Dash Engine (D, MIT, mature, inactive since 2015)
• Dawn (C++, GPL-3.0, beta, inactive since 2011)
• Decker (Java, GPL-2.0, beta, inactive since 2013)
• Deity (Python, GPL-2.0, mature, inactive since 2014)
• Deliantra (C, GPL-2.0, mature)
• Delta Engine (C#, Apache-2.0, mature, inactive since 2015)
• DemiGod (Java, GPL-3.0, beta, inactive since 2013)
• DeSmuME (C, C++, GPL-2.0, mature, inactive since 2015)
• Devana (PHP, zlib, beta)
• diablo-js (Java, JavaScript, MIT, mature)
• Digital: A Love Story (Ren'py, CC-BY-NC-SA, mature)
• DNT (C++, GPL-3.0, beta, inactive since 2016)
• Domination (Java, GPL-3.0, mature)
• Doxygen (C++, GPL-2.0, mature)
• Dragon History - Dračí Historie (Pascal, Script, GPL-2.0, mature, inactive since 2010)
• Dragon Hunt (Python, GPL-2.0, mature)
• DreamChess (C, GPL-3.0, beta)
• DRL (Lua, Pascal, GPL-2.0, mature)
• Duel Commander (C, GPL-3.0, beta, inactive since 2009)
• Dune Dynasty (C, GPL-2.0, mature, inactive since 2014)
• Dune II - The Maker (Java, MIT, beta)
• Dune Legacy (C++, GPL-2.0, mature)
• Dungeon Craft (C++, GPL-2.0, mature)
• Dungeon Crawl Stone Soup (C++, Lua, GPL-2.0, mature)
• Dungeon Hero (Java, MIT, mature)
• Dungeon Mapper (C++, GPL-3.0, beta, inactive since 2013)
• Dungeon Monkey Eternal (Python, GPL-2.0, mature, inactive since 2016)
• Dungeon Quest (Java, MIT, mature)
• EasyRPG Player (C++, GPL-3.0, mature)
• Eat The Whistle (C, ?, mature, inactive since 2017)
• Egoboo (C++, C, GPL-3.0, mature, inactive since 2015)
• Endgame: Singularity (Python, GPL-2.0, beta)
• Endless Sky (C++, GPL-3.0, mature)
• Enigma (C, C++, GPL-2.0, mature)
• ENIGMA (C++, C, GPL-3.0, mature)
• Eos, Dawn of Light: A Space Opera (Python, MIT, beta, inactive since 2007)
• Epiar (C, C++, Lua, GPL-2.0, beta)
• EPOH (JavaScript, MIT, beta)
• Erebus (C++, GPL-3.0, beta)
• Eternal Lands (C, C++, Custom, mature)
• EternalWinterWars (Java, MIT, beta, inactive since 2014)
• Evil Cult (Haxe, JavaScript, GPL-3.0, mature)
• Evol Online (C, GPL-3.0, mature)
• Exult (C++, GPL-2.0, mature)
• Fall of Imyrin (C++, Python, GPL-3.0, beta, inactive since 2009)
• Fallen Spire (Python, GPL-3.0, beta, inactive since 2009)
• Fanwor (C, GPL-2.0, mature)
• FAR Colony (Pascal, GPL-3.0, beta, inactive since 2014)
• First Strike (Java, MIT, mature)
• Fish Fillets - Next Generation (C++, GPL-2.0, mature)
• Flare Engine (C++, GPL-3.0, mature)
• FlightGear (C++, GPL-2.0, mature)
• Flixel (ActionScript, MIT, mature)
• Free heroes2 engine (C++, GPL-2.0, beta, inactive since 2015)
• Free in the Dark (engine) (C, C++, GPL-2.0, beta)
• Free Mars (Java, GPL-3.0, mature)
• Free Space Colonization (C, GPL-2.0, beta)
• Freeciv WebGL (JavaScript, Java, AGPL-3.0, mature)
• Freeciv (C, GPL-2.0, mature)
• FreeCol (Java, GPL-2.0, mature)
• Freedink (C++, GPL-3.0, mature)
• Freedoom (Not applicable, Not applicable, beta)
• FreedroidRPG (C, C++, Lua, GPL-2.0, mature)
• FreeLords (Java, GPL-2.0, beta)
• Freeminer (C++, Lua, GPL-3.0, beta)
• FreeOrion (C++, Python, GPL-2.0, beta)
• FreeRails (Java, C++, GPL-2.0, beta, inactive since 2008)
• FreeRCT (C++, GPL-2.0, beta, inactive since 2016)
• Freeserf (C, C++, GPL-3.0, mature)
• Freestars (C++, GPL-2.0, beta, inactive since 2008)
• FreeSynd (C++, GPL-2.0, beta, inactive since 2017)
• FreeTrain (C#, LGPL-2.1, beta, inactive since 2009)
• FreeType (C, GPL-2.0, Custom, mature)
• Frozen Bubble (Perl, GPL-2.0, mature, inactive since 2012)
• Fujo (Python, CC-BY-SA-4.0, mature, inactive since 2014)
• GalaxyMage Redux (Python, GPL-2.0, beta, inactive since 2011)
• GalaxyNG (C, GPL-2.0, mature, inactive since 2005)
• GameLV (C++, GPL-2.0, beta)
• Gang Garrison 2 (Game Maker Script, MPL, mature)
• GDash (C++, MIT, beta)
• GearHead (Pascal, LGPL-2.1, Apache-2.0, mature)
• Gee Whiz (C, GPL-2.0, beta, inactive since 2004)
• GemRB (C++, Python, GPL-2.0, mature)
• Gigalomania (C++, GPL-2.0, mature)
• Glest (C++, GPL-2.0, mature, inactive since 2009)
• Globulation2 (C++, GPL-3.0, mature)
• GLtron (C, GPL, beta, inactive since 2017)
• GM Tools (C++, GPL-2.0, beta, inactive since 2004)
• Goblin Camp (C++, GPL-3.0, beta, inactive since 2012)
• Goblin Hack (C++, GPL-2.0, beta, inactive since 2009)
• Godot (C, C++, MIT, mature)
• Golly (C++, Java, GPL-2.0, mature)
• GPL Arcade Volleyball (C++, GPL-2.0, beta, inactive since 2006)
• Grabble (Java, ?, mature, inactive since 2006)
• Greenius' Civil War (C++, GPL-2.0, beta, inactive since 2001)
• Grobots (C++, GPL-2.0, mature, inactive since 2014)
• GUSANOS (C++, GPL-2.0, beta, inactive since 2006)
• H-World (C, Lua, GPL-2.0, beta, inactive since 2005)
• Hale (Java, GPL-2.0, beta, inactive since 2014)
• HarfBuzz (C++, MIT, mature)
• Harris (C, Python, GPL-3.0, beta)
• HaxeFlixel (Haxe, MIT, mature)
• Haxima (C++, GPL-3.0, beta)
• Hero of Allacrost (C++, Lua, GPL-2.0, mature)
• Heroes of Wesnoth (C++, GPL-3.0, beta, inactive since 2010)
• Heroes of Wing Commander (Python, GPL-3.0, beta, inactive since 2014)
• Hex Game (C++, MIT, beta)
• Hexwar (Ruby, JavaScript, MIT, beta, inactive since 2012)
• HoDoKu (Java, GPL-3.0, mature, inactive since 2013)
• HolySpirit (C++, GPL-3.0, beta, inactive since 2013)
• HyperRogue (C++, GPL-2.0, mature)
• Ilarion (C++, Java, Lua, GPL-3.0, mature)
• Imperium (?, ?, mature)
• Infiniminer (C#, MIT, mature, inactive since 2016)
• Irrlicht Engine (C++, C, zlib, mature)
• Isometric Turn-Based Strategy (Python, MIT, beta)
• Iter Vehemens ad Necem (C++, GPL-2.0, beta)
• Jagged Alliance 2 Stracciatella (C, C++, Custom, mature)
• JaNaG - Java Name Generator (Java, GPL-3.0, mature, inactive since 2016)
• JiGS Interactive Game System (JavaScript, PHP, GPL-3.0, beta)
• jMonkeyEngine (Java, 3-clause BSD, mature)
• JQuest (Java, GPL-2.0, beta, inactive since 2006)
• JSettlers (Java, GPL-3.0, mature)
• KAtomic (C++, GPL-2.0, mature)
• kiki the nano bot (C++, Public domain, mature, inactive since 2007)
• Kingdoms (C++, GPL-3.0, beta, inactive since 2014)
• Knights and Merchants Remake (Pascal, AGPL-3.0, mature)
• Kobold's Quest 2 (Python, LGPL-3.0, beta, inactive since 2011)
• KQ Lives (C, GPL-2.0, beta, inactive since 2011)
• Labyrinth of Worlds (C++, LGPL-3.0, beta, inactive since 2010)
• Land of Fire (Custom, GPL-2.0, beta)
• LGames (C++, GPL-2.0, mature)
• LGeneral (C, GPL-2.0, mature, inactive since 2017)
• libGDX (Java, C++, C, Apache-2.0, mature)
• libpng (C, Custom, mature)
• Libxml2 (C, MIT, mature)
• Lightweight Java Game Library (Kotlin, C, 3-clause BSD, mature)
• LinCity-NG (C++, GPL-2.0, mature)
• Lincity (C, GPL-2.0, mature, inactive since 2005)
• Linley's Dungeon Crawl (C, Custom, mature, inactive since 2006)
• Linwarrior 3D (C++, Apache-2.0, mature, inactive since 2010)
• Lips of Suna (C, GPL-3.0, beta, inactive since 2014)
• Liquid War (C, GPL-3.0, mature, inactive since 2015)
• LordsAWar! (C++, GPL-3.0, mature)
• Lua (C, MIT, mature)
• Lugaru (C++, GPL-2.0, mature)
• Lumix Engine (C++, MIT, beta)
• LZMA SDK (C, LGPL-2.0, mature)
• LÖVE (C++, zlib, mature)
• M.E.W.L. (C++, GPL-2.0, beta, inactive since 2015)
• Machinations (C++, GPL-2.0, beta, inactive since 2003)
• Maelstrom (C, C++, GPL-2.0, mature, inactive since 2002)
• Magarena (Java, Groovy, GPL-3.0, mature)
• Mana (C++, GPL-2.0, beta)
• Maratis (C++, GPL-2.0, beta)
• Mars, Land of No Mercy (C++, GPL-2.0, beta, inactive since 2008)
• Me and My Shadow (C++, GPL-3.0, beta)
• Mechanized Assault & eXploration Reloaded (C++, C, GPL-2.0, beta)
• MechCommander 2 Omnitech (C++, Ms-PL, beta, inactive since 2013)
• Mega Mario (C++, LGPL-2.1, mature, inactive since 2012)
• MegaGlest (C, C++, GPL-3.0, mature)
• MegaMek (Java, GPL-2.0, mature)
• Mercenary Commander (Java, 3-clause BSD, beta, inactive since 2010)
• Meridian 59 (C++, C, GPL-2.0, mature)
• Meritous (C, GPL-3.0, mature, inactive since 2008)
• Metal Mech (PHP, GPL-2.0, beta, inactive since 2006)
• Micropolis (C++, Java, Python, GPL-3.0, mature, inactive since 2015)
• micropolisJS (JavaScript, GPL-3.0, mature)
• MicroWar 2.0 (Python, 3-clause BSD, mature, inactive since 2009)
• Minetest (C, C++, Lua, LGPL-2.1, mature)
• mkxp (C++, C, GPL-2.0, mature)
• MonoGame (C#, Ms-PL, MIT, mature)
• Monster Generator (Java, MIT, mature)
• Monstrosity (Python, MIT, mature)
• Moria (C, GPL-3.0, mature)
• Mpango (Java, GPL-2.0, beta, inactive since 2013)
• Murder In The Public Domain (C++, GPL-3.0, mature, inactive since 2013)
• Naev (C, Lua, GPL-3.0, mature)
• NetHack (C, Custom, mature)
• NetPanzer (C++, GPL-2.0, beta)
• Netrek (C, Custom, mature, inactive since 2009)
• NetStatsBaseball (C, Public domain, mature)
• Neverball (C, C++, GPL-2.0, mature)
• Nexiuz (C++, GPL-2.0, mature)
• NLarn (C, Lua, GPL-3.0, mature)
• nXtank (Python, GPL-3.0, beta, inactive since 2010)
• O.H.R.RPG.C.E (Basic, GPL-2.0, mature)
• Octaforge (C++, Custom, mature)
• OGRE3D (C++, MIT, mature)
• Oolite (Objective-C, C, JavaScript, GPL-2.0, mature)
• Open AL Soft (C, LGPL-2.0, mature)
• Open AL (C, Proprietary, mature)
• Open Apocalypse (C++, MIT, mature)
• Open Game Engine (C++, LGPL-2.1, beta, inactive since 2008)
• Open Imperium Galactica (Java, LGPL-3.0, mature)
• Open Legend RPG (Text, Custom, mature)
• Open Meridian (C, C++, GPL-2.0, mature)
• Open Panzer (JavaScript, GPL-2.0, mature)
• Open Rails (C#, GPL-3.0, mature)
• Open RPG Maker (C++, GPL-3.0, beta, inactive since 2014)
• Open RSC (Java, GPL-3.0, mature)
• Open Soccer Star (PHP, GPL-3.0, beta)
• Open Surge (C, GPL-3.0, beta)
• Open Tibia (C++, GPL-2.0, beta, inactive since 2014)
• Open Yahtzee (C++, GPL-2.0, mature, inactive since 2016)
• Open Zelda (C, C++, zlib, mature, inactive since 2015)
• OpenArena (C, GPL-2.0, mature, inactive since 2012)
• OpenBlox (Python, Lua, GPL-3.0, beta, inactive since 2011)
• OpenCity (C++, GPL-2.0, beta, inactive since 2015)
• OpenClonk (C, C++, ISC, mature)
• OpenDUNE (C, GPL-2.0, mature)
• OpenFL (Haxe, MIT, mature)
• Openglad (C++, GPL-2.0, mature, inactive since 2004)
• OpenHoMM (C++, GPL-3.0, beta, inactive since 2010)
• OpenLieroX (C++, LGPL-2.0, mature)
• OpenMOO2 (Python, GPL-2.0, beta, inactive since 2011)
• OpenMW (C++, GPL-3.0, mature)
• OpenRA (C#, GPL-3.0, mature)
• OpenRCT2 (C++, GPL-3.0, mature)
• OpenRPG (Python, GPL-2.0, mature, inactive since 2013)
• OpenSkyscraper (C++, GPL-2.0, beta)
• OpenSoccer (PHP, GPL-3.0, beta)
• OpenSSL (C, Custom, mature)
• OpenTTD (C++, GPL-2.0, mature)
• OpenWebSoccer-Sim (PHP, LGPL-3.0, mature)
• OpenXcom (C++, GPL-3.0, mature)
• Operation Citadel (C++, GPL-2.0, beta, inactive since 2000)
• ORIENT (C#, Java, GPL-2.0, mature, inactive since 2009)
• Orx (C, zlib, mature)
• Other-Life (C, C++, Custom, beta)
• Our Personal Space (Ren'py, GPL-3.0, mature)
• Outer Space (Python, GPL-2.0, beta)
• PainTown (C++, Java, Python, 3-clause BSD, mature)
• Panda 3D (C++, C, 3-clause BSD, mature)
• Pang Zero (Perl, GPL-2.0, beta, inactive since 2007)
• PARPG (Python, GPL-3.0, beta, inactive since 2012)
• Pasang Emas (Vala, GPL-3.0, mature)
• Pax Britannica (Lua, C, MIT, mature)
• PCGen (Java, LGPL-2.1, mature)
• Phantasy Star Rebirth (C++, GPL-3.0, beta, inactive since 2013)
• Pingus (C++, GPL-3.0, mature)
• Pioneer (C, C++, Lua, Apache-2.0, GPL-3.0, mature)
• Pioneers (C, GPL-2.0, mature)
• Pizza Business (C++, GPL-2.0, mature, inactive since 2003)
• pkg-config (C, GPL-2.0, mature)
• PlaneShift (C++, GPL-2.0, mature)
• Planetary Hoppers (Java, GPL-2.0, beta, inactive since 2003)
• PokerTH (C++, AGPL-3.0, mature, inactive since 2017)
• Polis (Java, GPL-3.0, mature, inactive since 2016)
• Polycode (C, C++, MIT, beta)
• Project Helena (Pascal, GPL-3.0, beta)
• Pthreads-win32 (C, LGPL-2.1, mature)
• pygame (C, Python, LGPL-2.1, mature)
• PyKaraoke (Python, LGPL-2.1, beta, inactive since 2011)
• Pymapper (Python, GPL-3.0, mature)
• pyORPG (Python, MIT, beta, inactive since 2015)
• PySol (Python, GPL-2.0, mature, inactive since 2004)
• Qt (C++, LGPL-3.0, mature)
• Quad-engine (Pascal, MIT, beta)
• Rabbit Escape (Java, GPL-2.0, mature)
• Radakan (Python, Custom, beta, inactive since 2014)
• Ragel (C++, MIT, mature)
• Rails: an 18xx game system (Java, GPL-2.0, mature)
• ransack (Python, MIT, mature, inactive since 2016)
• Red Eclipse (C++, zlib, mature)
• REGoth (C++, GPL-3.0, mature)
• Return to the Roots (C++, GPL-3.0, mature)
• Rigs of Rods (C, C++, AngelScript, GPL-3.0, mature)
• Rocks'n'Diamonds (C, GPL-2.0, mature)
• Rogue Clone IV (C, 3-clause BSD, mature, inactive since 2006)
• Roguish (JavaScript, 3-clause BSD, beta, inactive since 2015)
• Rolemaster Office (Java, Apache-2.0, mature)
• Rolisteam (C++, JavaScript, GPL-2.0, mature)
• Room for Change (Java, Apache-2.0, mature, inactive since 2013)
• RPDungeon - computer aided role playing (Pascal, GPL-2.0, beta, inactive since 2006)
• rpge (C, GPL-3.0, beta, inactive since 2014)
• Ryzom Core (C++, AGPL-3.0, mature)
• S.C.O.U.R.G.E. (C++, GPL-2.0, beta, inactive since 2008)
• sandbox Game Maker (C++, C, Custom, mature, inactive since 2014)
• Scorched Moon (Python, GPL-3.0, beta)
• Scorched3D (C++, GPL-2.0, mature, inactive since 2014)
• Scrabble3D (Pascal, GPL-3.0, mature, inactive since 2015)
• Scrolling Game Development Kit 2 (C#, GPL-2.0, mature, inactive since 2017)
• ScummVM (C++, GPL-2.0, mature)
• SDL Asylum (C, GPL-3.0, mature, inactive since 2009)
• SDL Game Engine 2D (C, MIT, beta, inactive since 2014)
• SDL Sopwith (C, GPL-2.0, mature, inactive since 2014)
• Secret Maryo Chronicles (C++, GPL-3.0, mature, inactive since 2009)
• Sengoku: Warring States of Japan (C++, Lua, MIT, beta, inactive since 2008)
• Sentient Storage (Python, Public domain, mature)
• Settlers III remake (Java, MIT, beta)
• Seven Kingdoms: Ancient Adversaries (C++, GPL-2.0, mature)
• SharpKonquest (C#, GPL-2.0, mature, inactive since 2007)
• Silvertree (C++, GPL-3.0, beta, inactive since 2007)
• Simple and Fast Multimedia Library (C++, zlib, mature)
• Simple DirectMedia Layer (C, zlib, mature)
• Simple-Solitaire (Java, GPL-3.0, mature)
• Simutrans (C++, Artistic License, mature)
• Sintel The Game (Python, MIT, beta, inactive since 2014)
• Skrupel - Tribute Compilation (PHP, JavaScript, GPL-2.0, mature, inactive since 2011)
• SLASH'EM (C, Custom, beta, inactive since 2007)
• Slay (Java, GPL-3.0, beta, inactive since 2010)
• Smash Battle (C++, ?, beta, inactive since 2011)
• Smash (JavaScript, MIT, mature)
• SoftPixel Engine (C++, zlib, mature, inactive since 2013)
• Solarus (C, C++, Lua, GPL-3.0, mature)
• Song of Albion (C, C++, Apache-2.0, mature, inactive since 2011)
• Source of Tales (Lua, GPL-3.0, mature, inactive since 2013)
• Space Faring (Java, GPL-3.0, beta)
• Space Opera (Java, GPL-2.0, beta, inactive since 2008)
• Space Station 13 (DM, AGPL-3.0, mature)
• Space Trader for Windows (C#, GPL-2.0, mature, inactive since 2009)
• Space War (Java, Apache-2.0, mature)
• SpaceTrader for Java (Java, GPL-2.0, mature, inactive since 2010)
• SpaceZero (C, GPL-3.0, beta)
• Speed Dreams (C++, GPL-2.0, mature)
• Spice Trade (Java, LGPL-2.0, mature, inactive since 2005)
• Spring RTS engine (C++, C, Lua, GPL-2.0, mature)
• Star Control II: The Ur-Quan Masters (C, GPL-2.0, mature, inactive since 2011)
• Star Maiden Astraea Rio (Ren'py, CC-BY-NC, mature)
• Star Ruler 2 (C, C++, MIT, mature)
• StarBlastrix (C++, GPL-2.0, beta, inactive since 2006)
• Stareater (C#, GPL-3.0, beta)
• Stars! Nova (C#, GPL-2.0, beta)
• Stendhal (Java, GPL-2.0, mature)
• StepMania (C, C++, Lua, MIT, mature)
• Story of a Lost Sky (Python, 3-clause BSD, mature)
• Stunt Rally (C, C++, GPL-3.0, mature)
• Summoning Wars (C, C++, Lua, GPL-3.0, beta, inactive since 2014)
• Superpowers (Typescript, ISC, mature)
• SuperTuxKart (C++, C, GPL-3.0, mature)
• Supremacy (C#, Ms-RL, beta, inactive since 2014)
• SWIG (C++, SWIG license, mature)
• T-Bots (C, GPL-2.0, beta, inactive since 2004)
• Tales of Maj'Eyal (C, Lua, GPL-3.0, mature)
• Tanks of Freedom (GDScript, MIT, mature)
• Tenes Empanadas Graciela (C, JavaScript, Perl, GPL-2.0, beta, inactive since 2015)
• Terasology (Java, Apache-2.0, mature)
• TetraVex (Swift, GPL-3.0, beta)
• The Battle for Wesnoth (C, C++, Java, Python, Lua, GPL-2.0, mature)
• The Bub's Brothers (Python, MIT, mature, inactive since 2013)
• The Butterfly Effect (C++, GPL-2.0, beta)
• The Clans (C, GPL-2.0, beta, inactive since 2003)
• The Endless Dungeons (C, CC-BY-NC-SA-2.0, mature, inactive since 2015)
• The Epic of Heroes (C++, GPL-3.0, beta, inactive since 2015)
• The hunt for the lost rainbow jewels (Jewelhunt) (Java, GPL-2.0, beta)
• The Legend of Edgar (C, GPL-2.0, mature)
• The Mana World (PHP, GPL-2.0, mature)
• Thousand Parsec (C++, Python, GPL-2.0, beta, inactive since 2012)
• TinTin++ (C, GPL-3.0, mature)
• TORCS, The Open Racing Car Simulator (C++, GPL-2.0, mature, inactive since 2016)
• Tremulous (C, GPL-2.0, mature, inactive since 2016)
• Tressette (C++, GPL-2.0, mature, inactive since 2017)
• Trinity Reign (C++, GPL-3.0, beta, inactive since 2013)
• TripleA (Java, GPL-2.0, mature)
• TROPHY (C++, GPL-2.0, mature, inactive since 2012)
• Tumiki Fighters (D, C++, 2-clause BSD, mature, inactive since 2005)
• Turious (C, GPL-3.0, beta, inactive since 2014)
• Turn of War (Java, GPL-3.0, beta)
• Tux Football (C++, GPL-2.0, beta, inactive since 2012)
• Tux of Math Command (C, GPL-3.0, mature, inactive since 2011)
• Tux Racer (C, GPL-2.0, beta, inactive since 2001)
• Tuxemon (Python, GPL-3.0, mature)
• TVTower (BlitzMax, Lua, Custom, mature)
• TwinEngine (C, GPL-2.0, mature, inactive since 2015)
• UFO2000 (C, C++, Lua, GPL-2.0, mature, inactive since 2012)
• UFO: Alien Invasion (C, C++, GPL-2.0, mature)
• UlDunAd (Python, GPL-3.0, beta, inactive since 2011)
• UltraStar Deluxe (Pascal, GPL-2.0, mature)
• UltraStar (Pascal, ?, mature, inactive since 2010)
• Umbra (Python, Custom, beta, inactive since 2002)
• Underworld Adventures (C++, Lua, GPL-2.0, beta, inactive since 2007)
• Unknown Horizons (Python, GPL-2.0, beta)
• UnNetHack (C, Custom, mature)
• Unvanquished (C, C++, GPL-3.0, mature)
• Urho3D (C++, AngelScript, MIT, mature)
• Valyria Tear (Lua, C++, C, GPL-2.0, mature)
• VASSAL Engine (Java, LGPL-2.1, mature)
• VCMI Project (C++, GPL-2.0, mature)
• VDrift (C++, GPL-3.0, mature, inactive since 2014)
• Vega Strike (C++, GPL-2.0, mature)
• Veloren (Rust, GPL-3.0, beta)
• War Of Kingdom (C, C++, GPL-2.0, beta)
• Wargamer (C++, GPL-2.0, mature, inactive since 2003)
• Wargus (C++, Lua, GPL-2.0, mature)
• Warzone 2100 (C++, GPL-2.0, mature)
• Waste's Edge (Python, GPL-2.0, beta)
• WAtomic (Pascal, GPL-2.0, mature, inactive since 2005)
• Widelands (C, C++, Lua, Python, GPL-2.0, mature)
• Witch Blast (C++, GPL-3.0, beta, inactive since 2015)
• Wizards Magic (Python, GPL-2.0, mature, inactive since 2012)
• Wolfpack Empire (C, GPL-3.0, mature)
• World Builder (Visual Basic, GPL-2.0, mature, inactive since 2007)
• World of Heroes (Python, 3-clause BSD, beta, inactive since 2009)
• World of Phaos (PHP, GPL-2.0, mature, inactive since 2011)
• WorldForge (C++, GPL-2.0, mature)
• wxWidgets (C++, Objective-C, Custom, mature)
• Wyrmsun (Lua, C++, GPL-2.0, mature)
• X-Force: Fight For Destiny (Pascal, GPL-2.0, beta, inactive since 2011)
• X-Moto (C++, GPL-2.0, mature, inactive since 2014)
• XArchon (C, C++, GPL-2.0, beta, inactive since 2003)
• Xconq (C++, GPL-2.0, mature, inactive since 2005)
• xdigger (C, GPL-2.0, mature, inactive since 1999)
• Xenowar (C, C++, GPL-3.0, mature, inactive since 2014)
• Xonotic (C, GPL-3.0, mature)
• xoreos (C++, GPL-3.0, beta)
• XPilot (C, GPL-2.0, mature, inactive since 2010)
• XSera (C, Lua, MIT, beta, inactive since 2010)
• xu4 (C++, GPL-2.0, mature, inactive since 2016)
• XZ Utils (C, Custom, mature)
• yaml-cpp (C++, MIT, mature)
• Yo Frankie! (Blender script, ?, mature, inactive since 2009)
• YSoccer (Java, GPL-2.0, mature)
• ZAngband (C, Custom, mature, inactive since 2005)
• Zelda: Mystery of Solarus DX (Lua, GPL-3.0, mature)
• Zero Ballistics (C++, MIT, mature, inactive since 2013)
• Zero-K (Lua, GPL-2.0, mature)
• Zetawar (Clojure, MIT, mature)
• ZGameEditor (Pascal, MIT, mature)
• zlib (C, zlib, mature)
• Zone of Control (Rust, Apache-2.0, beta, inactive since 2017)