RTSish Game Engine
3D-Accelerated open-source DOOM engine
Game engine for playing tomb raider 1 - 5 levels.
2D ARPG Engine
IRB is a game creation toolkit
Babylon 5 in Homeworld 2!
A space game in the Hoshikaze 2250 universe, built on the NAEV engine
A Simple Game Engine
Pear3DEngine is a modern and modular 3D development framework
A complete 2D Game Engine with built in drag and drop editor
RPG Games without coding!
Make games with Lego-like building blocks