Real Time Strategy game engine supporting early Westwood classics
Open Source real-time strategy game engine for early Westwood games
A modern, cross-platform Quake game engine based on FitzQuake.
GemRB is a portable open-source implementation of the Infinity Engine
Game engine supporting many 3D/2D formats and graphic effects
Fork of AbuseSDL to carry on development
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Improved version of the X-Ray Engine, the game engine
KlayGE is a cross-platform open source game engine
A mobile game distributed server implemented using netty4.X
Paintown is a 2d fighting game engine.
2D physics engine for games
WGFX 2D Game Engine