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

- **[Castle Game Engine](../castle_game_engine.md)** (Pascal, LGPL-2.0, mature)
- **[DelverEngine](../delverengine.md)** (Java, Custom, beta)
- **[DesktopAdventures](../desktopadventures.md)** (C, LGPL-2.1, beta)
- **[erampage](../erampage.md)** (C, GPL-2.0, beta, inactive since 2015)
- **[Flare](../flare.md)** (C++, Java, GPL-3.0, mature)
- **[Free in the Dark (engine)](../free_in_the_dark_engine.md)** (C, C++, GPL-2.0, beta)
- **[FreeSO](../freeso.md)** (C#, MPL-2.0, beta)
- **[Grit Game Engine](../grit_game_engine.md)** (C++, Python, MIT, beta)
- **[ioquake3](../ioquake3.md)** (C, GPL-2.0, mature)
- **[Jake2](../jake2.md)** (Java, GPL-2.0, beta, inactive since 2006)
- **[JediOutcastLinux](../jedioutcastlinux.md)** (C, C++, GPL-2.0, mature)
- **[JFDuke3D](../jfduke3d.md)** (C, GPL-2.0, beta, inactive since 2005)
- **[Librelancer](../librelancer.md)** (C, C#, MIT, beta)
- **[LionEngine](../lionengine.md)** (Java, GPL-3.0, mature)
- **[Nuvie](../nuvie.md)** (C, C++, Lua, GPL-2.0, beta, inactive since 2018)
- **[Odamex](../odamex.md)** (C, C++, GPL-2.0, beta)
- **[Open Cube](../open_cube.md)** (C++, zlib, beta, inactive since 2017)
- **[Open Game Engine](../open_game_engine.md)** (C++, LGPL-2.1, beta, inactive since 2008)
- **[openage](../openage.md)** (C++, Python, GPL-3.0, beta)
- **[OpenGothic](../opengothic.md)** (C++, MIT, beta)
- **[OpenJK](../openjk.md)** (C, C++, GPL-2.0, beta)
- **[OpenMW](../openmw.md)** (C++, GPL-3.0, mature)
- **[OpenNFS](../opennfs.md)** (C, C++, MIT, beta)
- **[OpenRW](../openrw.md)** (C, C++, GPL-3.0, beta)
- **[OpenSAGE](../opensage.md)** (C#, LGPL-3.0, beta)
- **[OpenTomb](../opentomb.md)** (C, C++, Lua, LGPL-3.0, beta)
- **[PainTown](../paintown.md)** (C++, Java, Python, 3-clause BSD, mature)
- **[Pentagram](../pentagram.md)** (C++, GPL-2.0, beta, inactive since 2018)
- **[Q-Gears](../q-gears.md)** (C, C++, GPL-2.0, beta, inactive since 2015)
- **[RBDOOM-3-BFG](../rbdoom-3-bfg.md)** (C, C++, GPL-3.0, mature)
- **[ResidualVM](../residualvm.md)** (C++, GPL-2.0, beta)
- **[Rigel Engine](../rigel_engine.md)** (C++, GPL-2.0, beta)
- **[ScummVM](../scummvm.md)** (C++, GPL-2.0, mature)
- **[sfall](../sfall.md)** (C++, C, GPL-3.0, mature)
- **[Spring](../spring.md)** (C++, C, Lua, GPL-2.0, mature)
- **[sundog](../sundog.md)** (C, C++, Python, MIT, beta)
- **[Tapir](../tapir.md)** (C, Ruby, Apache-2.0, MIT, beta, inactive since 2017)
- **[twin-e](../twin-e.md)** (C, GPL-2.0, beta, inactive since 2015)
- **[TwinEngine](../twinengine.md)** (C, GPL-2.0, mature, inactive since 2015)
- **[urde](../urde.md)** (C, C++, MIT, beta)
- **[VASSAL](../vassal.md)** (Java, LGPL-2.1, mature)
- **[WebFun](../webfun.md)** (TypeScript, MIT, beta)
- **[Zod Engine](../zod_engine.md)** (C++, ?, mature, inactive since 2018)