At the heart of every game is an engine powering it, which is covered by this sub-channel.
DarkPlaces is an open-source game engine powering the Xonotic first person shooter.
DHEWM3 is a popular engine fork of the open-source id Tech 4 / Doom 3 engine.
The iodoom3 is a fork of the open-source id Software id Tech 4 (Doom 3) game engine.
IOquake3 is a popular fork of the open-source id Software's id Tech 3 (Quake III) engine.
OpenMW is an open-source engine re-implementation of The Elder Scrolls III: Morrowind.
RBDoom3BFG is a community port of id Software's Doom 3 BFG Edition game to Linux.
Spearmint is an open-source game engine that serves as a further visually advanced version of ioquake3.
Unvanquished's game engine is Daemon and is a combination of the ioquake3 and ETXreaL open-source game engines with many advanced modifications.
Watermint is a fork of the Spearmint engine that seeks to ship a realistic open-source game.