[comment]: # (autogenerated content, do not edit)
# Action

- **[Abuse](abuse.md)** (C++, Lisp, Public domain, GPL-2.0, WTFPL, mature, inactive since 2011)
- **[Achtung, die Kurve!](achtung_die_kurve.md)** (JavaScript, AGPL-3.0, mature)
- **[Afternoon Stalker](afternoon_stalker.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[Ajax3d](ajax3d.md)** (JavaScript, GPL-2.0, beta, inactive since 2007)
- **[Aleph One](aleph_one.md)** (C++, Lua, GPL-3.0, mature, inactive since 2015)
- **[alive](alive.md)** (C++, MIT, beta, inactive since 2017)
- **[Armagetron Advanced](armagetron_advanced.md)** (C++, GPL-2.0, mature)
- **[Armor Alley](armor_alley.md)** (JavaScript, CC-BY-NC, beta)
- **[Artillery Duel Reloaded](artillery_duel_reloaded.md)** (Python, GPL-3.0, beta, inactive since 2012)
- **[asdf](asdf.md)** (JavaScript, MIT, mature)
- **[AstroMenace](astromenace.md)** (C++, C, GPL-3.0, mature)
- **[ativayeban](ativayeban.md)** (C, C++, GPL-2.0, mature, inactive since 2015)
- **[Atomic Tanks](atomic_tanks.md)** (C++, GPL-2.0, mature, inactive since 2016)
- **[Ball And Wall](ball_and_wall.md)** (JavaScript, MIT, mature, inactive since 2015)
- **[Ballerburg SDL](ballerburg_sdl.md)** (C, GPL3, mature)
- **[Batrachians](batrachians.md)** (C++, GPL-2.0, beta, inactive since 2012)
- **[Battle City](battle_city.md)** (C, C++, Pascal, GPL-3.0, mature, inactive since 2013)
- **[Battle Tanks](battle_tanks.md)** (C++, GPL-2.0, mature, inactive since 2009)
- **[Biniax](biniax.md)** (C, zlib, mature, inactive since 2012)
- **[BlakedAwesomenaughts](blakedawesomenaughts.md)** (JavaScript, PHP, MIT, beta, inactive since 2015)
- **[Blobby Volley 2](blobby_volley_2.md)** (C++, GPL-2.0, mature, inactive since 2017)
- **[Blobwars: Metal Blob Solid](blobwars_metal_blob_solid.md)** (C++, GPL-2.0, mature)
- **[Bombermaaan](bombermaaan.md)** (C++, GPL-3.0, mature, inactive since 2010)
- **[Bombic2](bombic2.md)** (C++, GPL-2.0, beta, inactive since 2010)
- **[Bombic](bombic.md)** (C++, GPL-2.0, beta, inactive since 2005)
- **[Bombman](bombman.md)** (Python, CC0, mature)
- **[BOOM: Remake](boom_remake.md)** (C++, Custom, mature)
- **[Boulder Dash](boulder_dash.md)** (Java, MIT, mature, inactive since 2015)
- **[bratwurst](bratwurst.md)** (Lisp, GPL-2.0, mature, inactive since 2009)
- **[Breakout-VR](breakout-vr.md)** (C#, MIT, beta, inactive since 2017)
- **[BRIQUOLO](briquolo.md)** (C++, GPL-3.0, mature, inactive since 2008)
- **[BurgerSpace](burgerspace.md)** (C++, GPL-2.0, mature, inactive since 2013)
- **[BZFlag](bzflag.md)** (C++, LGPL-2.1, MPL-2.0, mature)
- **[C-Dogs SDL](c-dogs_sdl.md)** (C, GPL-2.0, mature)
- **[Cabbages and Kings](cabbages_and_kings.md)** (Python, MIT, mature)
- **[Cadaver](cadaver.md)** (C++, GPL-2.0, beta, inactive since 2009)
- **[Cannonball](cannonball.md)** (C++, MAME, beta)
- **[Cat Mother Dead Justice](cat_mother_dead_justice.md)** (C++, 3-clause BSD, GPL-2.0, beta, inactive since 2003)
- **[CavePacker](cavepacker.md)** (JavaScript, C, C++, Lua, GPL-3.0, mature)
- **[cc94](cc94.md)** (C++, Python, AGPL-3.0, beta)
- **[Celestron](celestron.md)** (Python, GPL-3.0, beta, inactive since 2012)
- **[Chocolate Doom](chocolate_doom.md)** (C, GPL-2.0, mature)
- **[Chocolate Duke3D](chocolate_duke3d.md)** (C, GPL-2.0, Custom, beta)
- **[Chromium B.S.U.](chromium_bsu.md)** (C++, Artistic License, mature)
- **[Circus Linux!](circus_linux.md)** (C, GPL-2.0, mature, inactive since 2000)
- **[Clonepoint](clonepoint.md)** (C++, GPL-3.0, beta)
- **[Commander Genius](commander_genius.md)** (C, C++, GPL-2.0, mature)
- **[CommandoJS](commandojs.md)** (JavaScript, CoffeeScript, MIT, beta, inactive since 2012)
- **[Cosmosmash](cosmosmash.md)** (C++, GPL-2.0, mature, inactive since 2013)
- **[Devilution](devilution.md)** (C, C++, Unlicense, mature)
- **[DevilutionX](devilutionx.md)** (C, C++, Unlicense, mature)
- **[DGEngine](dgengine.md)** (C++, Zlib, GPL-3.0, beta)
- **[dhewm3](dhewm3.md)** (C, C++, GPL-3.0, mature)
- **[Digger Remastered](digger_remastered.md)** (C, GPL-2.0, mature, inactive since 2004)
- **[Doom Legacy](doom_legacy.md)** (C++, GPL-2.0, mature)
- **[DOOM Retro](doom_retro.md)** (C, C++, GPL-3.0, mature)
- **[DOOM-iOS](doom-ios.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[Doom64EX](doom64ex.md)** (C, C++, GPL-2.0, mature)
- **[Doomsday](doomsday.md)** (C, C++, GPL-2.0, GPL-3.0, LGPL-3.0, mature)
- **[Duke3D](duke3d.md)** (C, GPL-2.0, beta, inactive since 2009)
- **[Duke3d_w32](duke3dw32.md)** (C, GPL-2.0, beta, inactive since 2008)
- **[EDuke32](eduke32.md)** (C, C++, GPL-2.0, mature)
- **[Epiar](epiar.md)** (C, C++, Lua, GPL-2.0, beta)
- **[ET: Legacy](et_legacy.md)** (C, C++, Lua, GPL-3.0, mature)
- **[FQuake3](fquake3.md)** (F#, GPL-2.0, beta, inactive since 2014)
- **[freeablo](freeablo.md)** (C++, GPL-3.0, beta)
- **[FreeCS](freecs.md)** (QuakeC, GPL-2.0, mature)
- **[Freedoom](freedoom.md)** (Not applicable, Not applicable, beta)
- **[FreePrince](freeprince.md)** (C, GPL-2.0, beta, inactive since 2011)
- **[Galaxy Forces V2](galaxy_forces_v2.md)** (C++, ?, mature)
- **[Gang Garrison 2](gang_garrison_2.md)** (Game Maker Script, MPL, mature)
- **[GDash](gdash.md)** (C++, MIT, beta)
- **[ges-code](ges-code.md)** (C, C++, GPL-3.0, mature)
- **[GLtron](gltron.md)** (C, GPL, beta, inactive since 2017)
- **[GPL Arcade Volleyball](gpl_arcade_volleyball.md)** (C++, GPL-2.0, beta, inactive since 2006)
- **[Grimsonland](grimsonland.md)** (JavaScript, ?, mature, inactive since 2017)
- **[GUSANOS](gusanos.md)** (C++, GPL-2.0, beta, inactive since 2006)
- **[Gusty's Serpents](gustys_serpents.md)** (C++, GPL-3.0, beta, inactive since 2014)
- **[GZDoom](gzdoom.md)** (C, C++, GPL-3.0, mature)
- **[Hammer of Thyrion](hammer_of_thyrion.md)** (C, GPL-2.0, mature)
- **[Head over Heels](head_over_heels.md)** (C++, GPL-3.0, mature)
- **[Hedgewars](hedgewars.md)** (Lua, C, C++, Pascal, Haskell, GPL-2.0, mature)
- **[Hexoshi](hexoshi.md)** (Python, GPL-3.0, beta, inactive since 2016)
- **[Hovertank3D](hovertank3d.md)** (C++, Assembly, GPL-2.0, mature, inactive since 2014)
- **[ioquake3](ioquake3.md)** (C, GPL-2.0, mature)
- **[Jake2](jake2.md)** (Java, GPL-2.0, beta, inactive since 2006)
- **[Jet-Story](jet-story.md)** (Assembly, C, C++, MIT, beta)
- **[KGoldrunner](kgoldrunner.md)** (C++, GPL-2.0, mature)
- **[LGames](lgames.md)** (C++, GPL-2.0, mature)
- **[Linwarrior 3D](linwarrior_3d.md)** (C++, Apache-2.0, mature, inactive since 2010)
- **[Liquid War](liquid_war.md)** (C, GPL-3.0, mature, inactive since 2015)
- **[Lugaru](lugaru.md)** (C++, GPL-2.0, mature)
- **[Maelstrom](maelstrom.md)** (C, C++, GPL-2.0, mature, inactive since 2002)
- **[MechCommander 2 Omnitech](mechcommander_2_omnitech.md)** (C++, Ms-PL, beta, inactive since 2013)
- **[Mega Mario](mega_mario.md)** (C++, LGPL-2.1, mature, inactive since 2012)
- **[MicroWar 2.0](microwar_20.md)** (Python, 3-clause BSD, mature, inactive since 2009)
- **[Netrek](netrek.md)** (C, Custom, mature, inactive since 2009)
- **[Neverball](neverball.md)** (C, C++, GPL-2.0, mature)
- **[Nexuiz](nexuiz.md)** (C++, GPL-2.0, mature)
- **[nXtank](nxtank.md)** (Python, GPL-3.0, beta, inactive since 2010)
- **[Open Surge](open_surge.md)** (C, GPL-3.0, beta)
- **[Open Zelda](open_zelda.md)** (C, C++, zlib, mature, inactive since 2015)
- **[OpenArena](openarena.md)** (C, GPL-2.0, mature, inactive since 2012)
- **[OpenClonk](openclonk.md)** (C, C++, ISC, mature)
- **[OpenLieroX](openlierox.md)** (C++, LGPL-2.0, mature)
- **[PainTown](paintown.md)** (C++, Java, Python, 3-clause BSD, mature)
- **[Pang Zero](pang_zero.md)** (Perl, GPL-2.0, beta, inactive since 2007)
- **[Rabbit Escape](rabbit_escape.md)** (Java, GPL-2.0, mature)
- **[Red Eclipse](red_eclipse.md)** (C++, zlib, mature)
- **[Rocks'n'Diamonds](rocksndiamonds.md)** (C, GPL-2.0, mature)
- **[Scorched3D](scorched3d.md)** (C++, GPL-2.0, mature, inactive since 2014)
- **[SDL Asylum](sdl_asylum.md)** (C, GPL-3.0, mature, inactive since 2009)
- **[SDL Sopwith](sdl_sopwith.md)** (C, GPL-2.0, mature, inactive since 2014)
- **[Secret Maryo Chronicles](secret_maryo_chronicles.md)** (C++, GPL-3.0, mature, inactive since 2009)
- **[Smash Battle](smash_battle.md)** (C++, ?, beta, inactive since 2011)
- **[Smash](smash.md)** (JavaScript, MIT, mature)
- **[Speed Dreams](speed_dreams.md)** (C++, GPL-2.0, mature)
- **[StarBlastrix](starblastrix.md)** (C++, GPL-2.0, beta, inactive since 2006)
- **[Stunt Rally](stunt_rally.md)** (C, C++, GPL-3.0, mature)
- **[SuperTuxKart](supertuxkart.md)** (C++, C, GPL-3.0, mature)
- **[The Legend of Edgar](the_legend_of_edgar.md)** (C, GPL-2.0, mature)
- **[Tremulous](tremulous.md)** (C, GPL-2.0, mature, inactive since 2016)
- **[Tumiki Fighters](tumiki_fighters.md)** (D, C++, 2-clause BSD, mature, inactive since 2005)
- **[Tux Racer](tux_racer.md)** (C, GPL-2.0, beta, inactive since 2001)
- **[UltraStar](ultrastar.md)** (Pascal, ?, mature, inactive since 2010)
- **[Unvanquished](unvanquished.md)** (C, C++, GPL-3.0, mature)
- **[X-Moto](x-moto.md)** (C++, GPL-2.0, mature, inactive since 2014)
- **[xdigger](xdigger.md)** (C, GPL-2.0, mature, inactive since 1999)
- **[Xonotic](xonotic.md)** (C, GPL-3.0, mature)
- **[XPilot](xpilot.md)** (C, GPL-2.0, mature, inactive since 2010)
- **[Yo Frankie!](yo_frankie.md)** (Blender script, ?, mature, inactive since 2009)