Python MUD/MUX/MUSH/MU* development system
GemRB is a portable open-source implementation of the Infinity Engine
Royal Entertainment Graphics eXecution (REX)
Vivid3D is a C++ IDE/3D engine, with python scripting.
A cell-based puzzle game featuring classic and completely new puzzles
PyCAPGE - Python Classic Adventure Point and Click Game Engine
DOOM / Heretic / Hexen source port with enhanced graphics and UI
The second demo of my game engine.