GemRB is a portable open-source implementation of the Infinity Engine
3D platform action adventure with momentum-based flying
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Parchis Game in OpenGL. GPL.
Provides a full suite of clients and servers for virtual worlds.
realtime 3d surface rendering library
Python implementation of the Dual N-Back mental exercise
opensource clone of Duke Nukem Manhattan Project
Cross platform 2D game creation framework with Python bindings
A Dungeonhack fork with a few differences