GPS track editor for editing tracks and planning (multiple) day tours
Old-school 2D game engine
SDL based generic 2D game engine
Fast and robust map analyser for Brood War.
3D urban environment renderer : browser-app ; as well as a GTA clone
Adventure game with permanent death & procedurally generated level.
Free position 2D maps for computer games.
Table Top Online Role Playing (TTORP)
Space Exploration Game
http://www.jingluntianxia.com