33 KiB
33 KiB
Linux
- 0 A.D. (C, C++, JavaScript, GPL-2.0, beta)
- 1oom (C, GPL-2.0, mature)
- 3D Pong (C, GPL-2.0, beta, inactive since 2004)
- 4D Maze Game (Java, Public domain, mature, inactive since 2008)
- 4D-TRIS (C, GPL-2.0, mature, inactive since 2012)
- Abe's Amazing Adventure (C, GPL-2.0, mature, inactive since 2005)
- Abuse (C++, Lisp, Public domain, GPL-2.0, WTFPL, mature, inactive since 2011)
- AdaGate (Ada, GPL-3.0, mature)
- Afternoon Stalker (C++, GPL-2.0, mature, inactive since 2012)
- Airstrike (C, GPL-2.0, beta, inactive since 2014)
- Aisleriot (C, Scheme, GPL-3.0, mature)
- Aleph One (C++, Lua, GPL-3.0, mature)
- Alex the Allegator 4 (C, GPL-2.0, mature, inactive since 2003)
- alive (C++, MIT, beta)
- Annex: Conquer the World (Lua, GPL-3.0, mature, inactive since 2014)
- AntiChess (Java, MIT, beta, inactive since 2003)
- Ares Dogfighter (Java, GPL-3.0, beta, inactive since 2016)
- AssaultCube (C, C++, Custom, mature, inactive since 2018)
- Athenaeum (Python, GPL-3.0, beta)
- Atomic Tanks (C++, GPL-2.0, mature, inactive since 2016)
- Augustus (C, C++, AGPL-3.0, mature)
- Aussenposten (JavaScript, MIT, beta, inactive since 2015)
- Azimuth (C, GPL-3.0, mature)
- Balder2D (C++, GPL-2.0, beta, inactive since 2009)
- Ball and Paddle (C++, Scheme, GPL-3.0, beta, inactive since 2009)
- Batrachians (C++, GPL-2.0, beta, inactive since 2012)
- Battle Tanks (C++, GPL-2.0, mature, inactive since 2009)
- Berusky (C++, GPL-3.0, mature)
- Between (PHP, C++, ?, beta, inactive since 2010)
- Billiards (Lua, Objective-C, GPL-3.0, beta, inactive since 2012)
- Biniax (C, zlib, mature, inactive since 2012)
- Bitfighter (C, C++, GPL-2.0, mature)
- Blackvoxel (C++, GPL-3.0, mature)
- Bladecoder Adventure Engine (Java, Apache-2.0, mature)
- Blitwizard (C, C++, Lua, zlib, beta, inactive since 2015)
- Blobby Volley 2 (C++, GPL-2.0, mature, inactive since 2017)
- Block Attack - Rise of the Blocks (C++, GPL-2.0, mature)
- BlockOut II (C++, GPL-2.0, mature, inactive since 2014)
- BomberClone (C, GPL-2.0, beta, inactive since 2010)
- Bombermaaan (C++, GPL-3.0, mature, inactive since 2010)
- Bombic (C++, Objective-C, GPL-2.0, beta, inactive since 2005)
- Brain Workshop (Python, GPL-2.0, mature, inactive since 2011)
- Brikx (C++, GPL-2.0, beta, inactive since 2009)
- BRIQUOLO (C++, GPL-3.0, mature, inactive since 2008)
- Brogue (C, AGPL-3.0, mature)
- Brutal Chess (C++, GPL-2.0, beta, inactive since 2007)
- BurgerSpace (C++, GPL-2.0, mature, inactive since 2013)
- BZFlag (C++, LGPL-2.1, MPL-2.0, mature)
- C-Dogs SDL (C, GPL-2.0, mature)
- CaesarIA (C++, JavaScript, C, GPL-3.0, beta)
- Cannon Smash (C++, GPL-2.0, beta, inactive since 2003)
- Canta (Python, GPL-3.0, beta, inactive since 2011)
- Caph (C, GPL-3.0, mature, inactive since 2010)
- Cart Life (AGS Script, Custom, mature, inactive since 2014)
- Cataclysm: Dark Days Ahead (C++, CC-BY-SA-3.0, mature)
- CaveExpress (C, JavaScript, GPL-3.0, mature)
- CavePacker (JavaScript, C, C++, Lua, GPL-3.0, mature)
- CETech (C, C++, CC0, beta)
- Childsplay (Python, GPL-3.0, mature)
- Chocolate Doom (C, GPL-2.0, mature)
- Chrzaszcz (C++, GPL-3.0, beta, inactive since 2018)
- Chunk Stories (Kotlin, Java, LGPL-3.0, beta)
- Citybound (Rust, JavaScript, AGPL-3.0, beta)
- ClanLib (C, C++, zlib, mature)
- Classic RBDoom 3 BFG (C, C++, GPL-3.0, mature)
- Clonepoint (C++, GPL-3.0, beta)
- Colditz Escape (C, GPL-3.0, mature)
- Commander Genius (C, C++, GPL-2.0, mature)
- Cosmosmash (C++, GPL-2.0, mature, inactive since 2013)
- CoTerminalApps (Ada, GPL-3.0, mature)
- Crack Attack! (C++, GPL-2.0, mature, inactive since 2005)
- Craft (C, Python, MIT, mature, inactive since 2017)
- CrossUO (C, C++, GPL-3.0, mature)
- Crown (C, C++, Vala, MIT, beta)
- Crystal Space 3D SDK (C, C++, LGPL-2.1, mature, inactive since 2015)
- Cultivation (C++, Public domain, mature, inactive since 2010)
- Curse of War (C, C++, GPL-3.0, mature, inactive since 2014)
- curses (C, ?, mature, inactive since 2000)
- Cuyo (C++, GPL-2.0, mature, inactive since 2014)
- Cytadela (C++, GPL-3.0, beta, inactive since 2013)
- D2X-XL (C++, Custom, GPL-2.0, mature, inactive since 2015)
- Daggerfall Unity (C#, MIT, mature)
- DarkPlaces (C, GPL-2.0, mature, inactive since 2014)
- Dave Gnukem (C++, GPL-2.0, mature)
- Deer Portal (C++, zlib, beta)
- Defendguin (C, GPL-2.0, mature, inactive since 2009)
- DeSmuME (C, C++, GPL-2.0, mature, inactive since 2015)
- Destination Sol (Java, Apache-2.0, mature)
- dhewm3 (C, C++, GPL-3.0, mature)
- Digital: A Love Story (Ren'Py, CC-BY-NC-SA-3.0, mature)
- Domination (Java, GPL-3.0, mature)
- Doom Legacy (C++, GPL-2.0, mature)
- DOOM (C, Custom, mature, inactive since 2012)
- Doomsday Engine (C, C++, GPL-2.0, GPL-3.0, LGPL-3.0, mature)
- Dope Wars (C, GPL-2.0, mature, inactive since 2013)
- DreamChess (C, GPL-3.0, beta)
- DRL (Lua, Pascal, GPL-2.0, mature)
- Duck Marines (Lua, zlib, mature, inactive since 2016)
- Duel Commander (C, GPL-3.0, beta, inactive since 2009)
- Dust Racing 2D (C, C++, GPL-3.0, mature)
- DwarfCorp (C#, MIT, mature)
- DXX-Rebirth (C, C++, Python, GPL-3.0, Custom, mature)
- Eat The Whistle (C, ?, mature, inactive since 2017)
- ECWolf (C++, GPL-2.0, LGPL-2.1, zlib, MIT, IJG, Public domain, mature)
- ElonaFoobar (C++, Lua, MIT, mature)
- Elysium Engine (C, GPL-2.0, beta, inactive since 2006)
- Emilia Pinball (C++, GPL-2.0, beta)
- Empty Clip (C++, GPL-2.0, mature)
- EmptyEpsilon (C, C++, Lua, GPL-2.0, mature)
- Enigma (C, C++, GPL-2.0, mature)
- Esenthel Engine (C, C++, Custom, beta)
- ET: Legacy (C, C++, Lua, GPL-3.0, mature)
- ezQuake (C, C++, GPL-2.0, mature)
- F-1 Spirit (C++, ?, beta, inactive since 2009)
- Falcon's Eye (C, NetHack General Public License, mature, inactive since 2004)
- Falltergeist (C++, GPL-3.0, beta)
- Faur (C, Python, C++, GPL-3.0, beta)
- Fish Fillets - Next Generation (C++, GPL-2.0, mature)
- Flare (C++, Java, Python, GPL-3.0, mature)
- flixel-gdx (Java, 3-clause BSD, beta, inactive since 2017)
- FLTK Recycling Game! (C++, LGPL-2.1, mature, inactive since 2014)
- Flukz (C++, GPL-2.0, beta, inactive since 2014)
- FooBillard++ (C, GPL-2.0, mature, inactive since 2012)
- FooBillard (C, GPL-2.0, mature, inactive since 2010)
- Free Mars (Java, GPL-3.0, mature)
- freeablo (C++, GPL-3.0, beta)
- FreeBlocks (C, Java, GPL-3.0, beta, inactive since 2015)
- Freedoom (None, None, beta)
- Freeminer (C++, Lua, GPL-3.0, beta)
- Freenukum (C, GPL-3.0, beta, inactive since 2009)
- Frets on Fire (Python, GPL-2.0, mature, inactive since 2008)
- Friking Shark (C++, C, GPL-3.0, mature)
- Frozen Bubble (Perl, GPL-2.0, mature, inactive since 2012)
- GameCake (C, C++, Lua, MIT, mature)
- GCompris (C, Python, GPL-3.0, mature)
- Gem Drop X (C, GPL-2.0, beta, inactive since 2002)
- GeonBit.UI (C#, MIT, mature)
- Gilbert and the doors (C, GPL-3.0, mature, inactive since 2018)
- GL-117 (C++, GPL-2.0, mature, inactive since 2005)
- GL4ES (C, MIT, mature)
- GLEW (C, C++, Perl, 3-clause BSD, mature)
- glParchis (Python, GPL-3.0, mature)
- GLtron (C, ?, beta, inactive since 2017)
- Gnome Chess (Vala, GPL-3.0, mature)
- GNU Chess (C++, GPL-3.0, mature, inactive since 2017)
- GNU FreeDink (C, GPL-3.0, mature, inactive since 2012)
- GNU Go (C, GPL-3.0, mature, inactive since 2011)
- Go Ollie! (?, GPL-3.0, mature, inactive since 2011)
- Golly (C++, Java, GPL-2.0, mature)
- Gottet (C++, GPL-3.0, mature)
- GPL Arcade Volleyball (C++, GPL-2.0, beta, inactive since 2006)
- Grail (C++, Lua, GPL-3.0, beta, inactive since 2013)
- Gravitation (C++, Public domain, mature, inactive since 2008)
- Grobots (C++, GPL-2.0, mature, inactive since 2014)
- GTK (C, LGPL-2.1, mature)
- GUSANOS (C++, GPL-2.0, beta, inactive since 2006)
- Gweled (C, GPL-2.0, mature)
- GZDoom (C, C++, GPL-3.0, mature)
- Hammer of Thyrion (C, GPL-2.0, mature)
- Hardwar (C++, GPL-3.0, beta, inactive since 2015)
- Harmonist: Dayoriah Clan Infiltration (Go, ISC, beta)
- Head over Heels (C++, GPL-3.0, mature)
- Hedgewars (Lua, C, C++, Pascal, Haskell, GPL-2.0, mature)
- Help Hannah's Horse (C++, GPL-2.0, beta, inactive since 2008)
- heXon (C++, GPL-2.0, beta)
- Hexoshi (Python, GPL-3.0, beta, inactive since 2016)
- HHexen (C, GPL-2.0, mature, inactive since 2013)
- HoDoKu (Java, GPL-3.0, mature, inactive since 2013)
- Holtz (C++, GPL-2.0, mature)
- Hopson-Arcade (C++, GPL-3.0, mature)
- HyperRogue (C++, GPL-2.0, mature)
- I Have No Tomatoes (C++, zlib, mature, inactive since 2004)
- Ice Breaker (C, GPL-2.0, mature, inactive since 2003)
- Inexor (C++, JavaScript, zlib, beta, inactive since 2018)
- Infinite Tux (Java, GPL-3.0, Public domain, mature)
- Infon Battle Arena (C, Lua, GPL-2.0, beta, inactive since 2012)
- INSTEAD (C, Lua, MIT, mature)
- Intricacy (Haskell, GPL-3.0, beta)
- ioquake3 (C, GPL-2.0, mature)
- iortcw (C, C++, GPL-3.0, mature)
- Jake2 (Java, GPL-2.0, beta, inactive since 2006)
- Jamp (C++, GPL-3.0, beta, inactive since 2009)
- Javelin (Java, GPL-2.0, mature, inactive since 2016)
- Jazz² Resurrection (C#, JavaScript, GPL-3.0, mature)
- JSkat (Java, GPL-3.0, Apache-2.0, beta)
- JSoko (Java, GPL-3.0, mature)
- KevEdit (C, GPL-2.0, mature)
- Key Runner (C++, GPL-3.0, mature, inactive since 2013)
- Killer Crates (Java, MIT, beta, inactive since 2017)
- Kingdoms (C++, GPL-3.0, beta, inactive since 2014)
- KKnD (C#, GPL-3.0, beta)
- KMines (C++, GPL-2.0, mature)
- Kobo Deluxe (C++, GPL-2.0, beta, inactive since 2007)
- Krank (Python, Public domain, beta, inactive since 2008)
- Krystal Drop (C++, GPL-2.0, beta, inactive since 2004)
- KungFoo Barracuda (C++, GPL-3.0, mature, inactive since 2016)
- L'Abbaye des Morts (C, GPL-3.0, mature, inactive since 2018)
- LambdaHack (Haskell, 3-clause BSD, beta)
- LambdaRogue: The Book of Stars (Pascal, GPL-2.0, mature, inactive since 2012)
- LBreakout2 (C, GPL-2.0, mature, inactive since 2010)
- LBreakoutHD (C++, GPL-3.0, mature)
- LevelHead (C++, Python, GPL-3.0, mature, inactive since 2009)
- LGames (C++, GPL-2.0, mature)
- Liberal Crime Squad (C++, GPL-2.0, mature, inactive since 2012)
- Librelancer (C, C#, MIT, beta)
- libvorbis (C, 3-clause BSD, mature)
- LIKO-12 (Lua, MIT, mature)
- LionEngine (Java, GPL-3.0, mature)
- Liquid War (C, GPL-3.0, mature, inactive since 2015)
- Lugaru (C++, GPL-2.0, mature)
- Luola (C, GPL-2.0, mature, inactive since 2005)
- LÖVE (C++, zlib, mature)
- Maelstrom (C, C++, GPL-2.0, mature, inactive since 2002)
- ManiaDrive (PHP, ?, mature, inactive since 2008)
- Marble Marcher (C++, GPL-2.0, mature)
- Mari0 (Lua, MIT, mature, inactive since 2012)
- Maxit (C++, 3-clause BSD, mature, inactive since 2014)
- Me and My Shadow (C++, GPL-3.0, beta)
- Metaforce (C, C++, MIT, beta)
- Mindustry (Java, GPL-3.0, mature)
- Mines (Vala, GPL-3.0, mature)
- Minetest (C, C++, Lua, LGPL-2.1, mature)
- mini2Dx (Java, C#, Apache-2.0, mature)
- Minilens (GDScript, GPL-3.0, mature, inactive since 2018)
- Mininim (C, GPL-3.0, beta, inactive since 2017)
- MiniPacman (Ada, GPL-3.0, mature)
- Moagg2 (Java, GPL-2.0, mature, inactive since 2008)
- Moonbase Assault (Java, MIT, beta, inactive since 2019)
- Mr. Rescue (Lua, zlib, mature, inactive since 2016)
- Murder In The Public Domain (C++, GPL-3.0, mature, inactive since 2013)
- n2048 (C, 2-clause BSD, beta, inactive since 2014)
- Nazara Engine (C, C++, MIT, beta)
- ncurses (C, MIT, mature)
- NetMauMau (C++, LGPL-3.0, mature, inactive since 2015)
- Netrek (C, Custom, mature, inactive since 2009)
- NFSIISE (C, MIT, mature)
- Nikwi (C++, GPL-2.0, beta, inactive since 2012)
- No Gravity (C, GPL-2.0, mature, inactive since 2006)
- Noiz2sa (C, C++, 2-clause BSD, beta, inactive since 2004)
- Not Pacman (Lua, WTFPL, mature, inactive since 2013)
- NOVA PINBALL (Lua, GPL-3.0, beta, inactive since 2017)
- NullpoMino (Java, 3-clause BSD, mature)
- Numpty Physics (C++, GPL-3.0, beta, inactive since 2016)
- NumPy (C, Python, 3-clause BSD, mature)
- OGS Mahjong (C++, GPL-3.0, mature, inactive since 2016)
- OldSkool Gravity Game (C++, GPL-3.0, mature, inactive since 2016)
- Oolite (Objective-C, C, JavaScript, GPL-2.0, mature)
- Open Fodder (C, C++, GPL-3.0, mature)
- Open Horizon (C++, MIT, beta)
- Open Quartz (C, GPL-2.0, beta, inactive since 2004)
- Open Rodent's Revenge (C++, MIT, beta, inactive since 2018)
- Open RSC (Java, GPL-3.0, mature)
- Open Yahtzee (C++, GPL-2.0, mature, inactive since 2016)
- OpenAlchemist (C++, GPL-2.0, beta, inactive since 2010)
- OpenArena (C, GPL-2.0, mature, inactive since 2012)
- openblack (C, C++, GPL-3.0, beta)
- OpenBlok (C++, GPL-3.0, beta)
- OpenBlox (Python, Lua, GPL-3.0, beta, inactive since 2011)
- OpenBVE (C#, Public domain, mature)
- OpenClonk (C, C++, ISC, mature)
- OpenDungeons (C++, GPL-3.0, beta)
- OpenHoW (C, C++, GPL-3.0, beta)
- OpenHV (C#, Lua, GPL-3.0, beta)
- OpenITG (C, C++, MIT, beta, inactive since 2017)
- OpenLara (C++, C, 2-clause BSD, mature)
- OpenMortal (C++, Perl, GPL-2.0, beta, inactive since 2006)
- OpenOMF (C, C++, MIT, beta)
- OpenRCT2 (C++, GPL-3.0, mature)
- OpenRW (C, C++, GPL-3.0, beta)
- OpenSAGE (C#, LGPL-3.0, beta)
- OpenSolomonsKey (C++, Unlicense, beta)
- OpenSupaplex (C, GPL-3.0, mature)
- OpenTESArena (C++, MIT, beta)
- OpenVIII (C#, MIT, beta)
- OPMon (C++, GPL-3.0, beta)
- opsu! (Java, GPL-3.0, mature)
- ouzel (C, C++, Objective-C, 2-clause BSD, beta)
- Overgod (C, GPL-2.0, mature, inactive since 2005)
- Pacewar (Python, GPL-3.0, mature, inactive since 2017)
- Pachi (C, Python, GPL-2.0, mature)
- PainTown (C++, Java, Python, 3-clause BSD, mature)
- Pang Zero (Perl, GPL-2.0, beta, inactive since 2007)
- PARSEC47 (D, 2-clause BSD, beta, inactive since 2003)
- Pasang Emas (Vala, GPL-3.0, mature)
- Passage (C++, Public domain, mature, inactive since 2011)
- Penguin Command (C, GPL-2.0, mature, inactive since 2007)
- Pentagram (C++, GPL-2.0, beta, inactive since 2018)
- Performous (C, C++, GPL-2.0, mature)
- PGU (Python, LGPL-2.1, mature)
- Physics Platformer (Java, MIT, beta, inactive since 2019)
- Physics Spacewar (Java, MIT, beta, inactive since 2019)
- Pillow (C, Python, Custom, mature)
- Pillows (Python, GPL-2.0, beta, inactive since 2007)
- Pingus (C++, GPL-3.0, mature)
- Pink Pony (C++, GPL-3.0, mature, inactive since 2017)
- Pixel Dungeon (Java, GPL-3.0, mature, inactive since 2015)
- Pixel Wheels (Java, GPL-3.0, beta)
- PixelLight (C, C++, MIT, mature, inactive since 2012)
- Planet Rider (GDScript, GPL-3.0, mature, inactive since 2015)
- PLIB (C++, LGPL-2.0, mature, inactive since 2012)
- PokerTH (C++, AGPL-3.0, mature, inactive since 2017)
- Powermanga (C, GPL-3.0, beta, inactive since 2015)
- Powerslave EX (C, C++, GPL-3.0, beta, inactive since 2017)
- Powerslide remake (C++, MIT, beta)
- Primrose (C++, Public domain, mature, inactive since 2009)
- Privateer - Gemini Gold (C++, GPL-2.0, mature, inactive since 2012)
- Project: Starfighter (C, GPL-3.0, mature)
- Psyco (C, MIT, mature, inactive since 2008)
- PyChess (Python, TypeScript, GPL-3.0, mature)
- Pygame---Alien-Invasion (Python, GPL-3.0, beta, inactive since 2018)
- pyglet (Python, 3-clause BSD, mature)
- PyKaraoke (Python, LGPL-2.1, beta, inactive since 2011)
- PyQt (C++, Python, GPL-3.0, Custom, mature)
- pyscroll (Python, LGPL-3.0, mature, inactive since 2018)
- pyskool (Python, GPL-3.0, mature)
- PySol (Python, GPL-2.0, mature, inactive since 2004)
- PyTMX (Python, LGPL-3.0, mature)
- Q (Python, GPL-3.0, mature, inactive since 2013)
- QuakeSpasm (C, GPL-2.0, mature)
- Rabbit Escape (Java, GPL-2.0, mature)
- Race Into Space (C, C++, GPL-2.0, mature)
- raylib (C, C++, C#, zlib, mature)
- Recursive Runner (C++, GPL-3.0, beta, inactive since 2017)
- Reliquarium (Ada, GPL-2.0, mature)
- Ren'Py (C, Python, Ren'Py, LGPL-2.1, mature)
- ReTux (Python, GPL-3.0, mature, inactive since 2018)
- Ri-li (C++, GPL-3.0, mature, inactive since 2007)
- Rocks'n'Diamonds (C, GPL-2.0, mature)
- RogueBox Adventures (Python, GPL-3.0, mature, inactive since 2017)
- Rolisteam (C++, JavaScript, GPL-2.0, mature)
- RPG-X (C, GPL-2.0, mature, inactive since 2015)
- rpgboss (Scala, JavaScript, AGPL-3.0, beta, inactive since 2017)
- rRootage (C, 2-clause BSD, beta, inactive since 2004)
- Ruby-warrior (Ruby, MIT, beta, inactive since 2012)
- RufasCube (Ada, GPL-2.0, mature)
- RufasSlider (C++, GPL-2.0, mature)
- RufasSwap (Ada, GPL-3.0, mature)
- SanAndreasUnity (C#, MIT, mature)
- Scorched3D (C++, GPL-2.0, mature, inactive since 2014)
- Scrabble3D (Pascal, GPL-3.0, mature, inactive since 2015)
- SDL Asylum (C, GPL-3.0, mature, inactive since 2009)
- SDL Bomber (C, GPL-2.0, mature, inactive since 2012)
- SDL Sopwith (C, GPL-2.0, mature, inactive since 2014)
- SDL-Ball (C++, GPL-3.0, mature, inactive since 2016)
- Settlers III remake (Java, MIT, beta)
- Seven Kingdoms: Ancient Adversaries (C++, GPL-2.0, mature)
- Shattered Pixel Dungeon (Java, GPL-3.0, mature)
- Shockolate (C, GPL-3.0, beta)
- Shotgun Debugger (C++, GPL-2.0, mature, inactive since 2005)
- Simon Tatham's Portable Puzzle Collection (C, MIT, mature)
- Simple Platformer (Java, MIT, beta, inactive since 2019)
- Simsu (C++, GPL-3.0, mature)
- Slime Volley (C, GPL-3.0, mature, inactive since 2010)
- Slingshot (Python, GPL-2.0, beta, inactive since 2007)
- Sludge (C, C++, Objective-C, LGPL-2.1, mature)
- Smash Battle (C++, ?, beta, inactive since 2011)
- Snelps (Ruby, LGPL-2.1, beta, inactive since 2012)
- SoftPixel Engine (C++, zlib, mature, inactive since 2013)
- SokoSolve (C#, GPL-3.0, mature, inactive since 2009)
- SolarWolf (Python, LGPL-2.1, mature, inactive since 2004)
- Sole Collector (Java, MIT, beta, inactive since 2018)
- Sonic Robo Blast 2 (C, C++, GPL-2.0, mature)
- Space Nerds In Space (C, Lua, GPL-2.0, beta)
- SpacePeng! (Java, GPL-3.0, mature, inactive since 2017)
- SpaceTrader for Java (Java, GPL-2.0, mature, inactive since 2010)
- SpaceZero (C, GPL-3.0, beta)
- Spice Trade (Java, LGPL-2.1, mature, inactive since 2005)
- Stareater (C#, GPL-3.0, beta)
- SteveTech1 (Java, MIT, beta, inactive since 2019)
- Stratagus (C++, GPL-2.0, mature)
- Stunt Rally (C, C++, GPL-3.0, mature)
- Sudokuki (C, Java, GPL-3.0, mature, inactive since 2016)
- sundog (C, C++, Python, MIT, beta)
- Super Methane Brothers (C++, GPL-2.0, mature, inactive since 2011)
- SuperStarfighter (GDScript, MIT, beta)
- SuperTux (C++, GPL-3.0, beta)
- SuperTuxKart (C++, C, GPL-3.0, mature)
- SuperTuxParty (GDScript, GPL-3.0, beta)
- System Syzygy (Rust, GPL-3.0, mature, inactive since 2018)
- T^3 (C++, GPL-2.0, beta, inactive since 2005)
- Tactics Squad (C++, GPL-2.0, beta, inactive since 2007)
- Taisei Project (C, Python, MIT, mature)
- Tangomon (Python, GPL-3.0, mature, inactive since 2017)
- TankistOnline (Python, GPL-3.0, beta)
- Tanks of Freedom (GDScript, MIT, mature)
- Team Tactics (Java, MIT, beta, inactive since 2016)
- Teeworlds (C, C++, zlib, beta, inactive since 2013)
- Tenes Empanadas Graciela (C, JavaScript, Perl, GPL-2.0, beta, inactive since 2015)
- TermFrogger (Ada, GPL-3.0, mature)
- TerminalApps (Ada, GPL-3.0, mature)
- TES3MP (C++, 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 Dark Mod (C++, GPL-3.0, mature)
- The Eternity Engine (C, C++, GPL-3.0, mature)
- The Legend of Edgar (C, GPL-2.0, mature)
- The Powder Toy (C++, C, Lua, Python, GPL-3.0, mature)
- The Secret Chronicles of Dr. M. (C++, GPL-3.0, mature)
- Thrive (C++, AngelScript, JavaScript, C#, GPL-3.0, beta)
- Thrust (C, GPL-2.0, beta, inactive since 2006)
- TinTin++ (C, GPL-3.0, mature)
- Toppler (C++, GPL-2.0, mature, inactive since 2012)
- TORCS, The Open Racing Car Simulator (C++, GPL-2.0, mature, inactive since 2016)
- Total Annihilation 3D (C++, C, Lua, GPL-2.0, beta, inactive since 2017)
- Trackballs (C++, Scheme, GPL-2.0, mature)
- Transcend (C++, ?, beta, inactive since 2005)
- Tremulous (C, GPL-2.0, mature, inactive since 2016)
- Trigger (C++, GPL-2.0, beta)
- Trip on the Funny Boat (Python, GPL-2.0, mature, inactive since 2007)
- TROPHY (C++, GPL-2.0, mature, inactive since 2012)
- Tumbly Towers (Java, MIT, beta, inactive since 2017)
- Tumiki Fighters (D, C++, 2-clause BSD, mature, inactive since 2005)
- TUSSLE (Python, GPL-3.0, mature, inactive since 2017)
- Tux Football (C++, GPL-2.0, beta, inactive since 2012)
- Tux of Math Command (C, GPL-3.0, mature, inactive since 2011)
- Tux Paint (C, C++, GPL-2.0, beta)
- Tuxemon (Python, GPL-3.0, beta)
- TuxKart (C++, GPL-2.0, beta, inactive since 2004)
- Twisted (Python, MIT, mature)
- Ultimate Stunts (C++, GPL-2.0, beta, inactive since 2013)
- UltraStar Deluxe (Pascal, GPL-2.0, mature)
- UnCiv (Kotlin, MPL-2.0, beta)
- unitystation (C#, AGPL-3.0, beta)
- Unvanquished (C, C++, GPL-3.0, mature)
- Vamos (C++, Python, GPL-3.0, beta, inactive since 2014)
- Vanilla-Conquer (C, C++, Assembly, GPL-3.0, mature)
- VASSAL (Java, LGPL-2.1, mature)
- VDrift (C++, GPL-3.0, mature, inactive since 2014)
- Vectoroids (C, GPL-2.0, mature, inactive since 2002)
- Veraball (GDScript, MIT, beta, inactive since 2016)
- Vertigo (C, GPL-2.0, beta, inactive since 2002)
- Violetland (C++, GPL-3.0, beta)
- vitetris (C, 2-clause BSD, beta)
- vkQuake (C, C++, GPL-2.0, mature)
- Vocaluxe (C#, C++, GPL-3.0, beta, inactive since 2018)
- Vorton (C, GPL-3.0, beta, inactive since 2004)
- Voxelands (C++, GPL-3.0, beta)
- warcraft-remake (Java, GPL-2.0, beta)
- Which Way Is Up? (Python, GPL-2.0, beta, inactive since 2008)
- Wizardry Legacy (C++, GPL-3.0, beta, inactive since 2018)
- Word War vi (C, GPL-2.0, mature)
- wxPython (Python, C, wxWindows license, mature)
- X-Moto (C++, GPL-2.0, mature, inactive since 2014)
- xBaK (C++, GPL-3.0, beta, inactive since 2013)
- XBill (C, GPL-2.0, mature, inactive since 2001)
- XBlast (C, GPL-2.0, mature, inactive since 2005)
- xdigger (C, GPL-2.0, mature, inactive since 1999)
- XorCurses (C, GPL-3.0, beta, inactive since 2012)
- XPilot NG (C, GPL-2.0, mature, inactive since 2010)
- XPilot (C, GPL-2.0, mature, inactive since 2010)
- XSkat (Java, Custom, mature)
- Yamagi Quake II (C, GPL-2.0, mature)
- Yet Another Engine (MoonScript, Java, Lua, MIT, beta, inactive since 2016)
- Yo Frankie! (Blender Script, ?, mature, inactive since 2009)
- YSoccer (Java, GPL-2.0, mature)
- Zatacka (C, C++, GPL-2.0, beta, inactive since 2007)
- Zaz (C++, GPL-3.0, beta, inactive since 2010)
- ZDoom (C, C++, ZenScript, GPL-3.0, mature)
- Zod Engine (C++, ?, mature, inactive since 2018)