Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
RTSish Game Engine
Game engine for playing tomb raider 1 - 5 levels.
2D ARPG Engine
Turn based Civ-like strategy game
computer simulation for my raspberry pi
Single-/multi-player card game Mau Mau (similar to UNO®)
sauerbraten with LuaJit2 scripting
Tongue-in-cheek action RPG
Pear3DEngine is a modern and modular 3D development framework
Karaoke effects creation tool with ASS and Lua.