A pythonic interface to MATLAB
a flexible game engine
A very small multi-platform game engine for creating desktop games.
The solution to all your problems
Open Source Virtual World and MMOG Development Platform
A text based game made in Python
Text based game made in python 3.3
Cross-platform reimplementation of AMOS BASIC (runtime)
a realtime graphics library
MGB
Pig2D is a game engine for Java that uses a sprite-based interface.
Reference implementation for the Doom game engine.
Tikal Online - 3D MMORPG (Torque/Python)
Erosion simulation game