Orx: Portable Game Engine
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
Open Game Bootstrap
Gives agents personality, moods, emotions and emotional attachments.
A generic 2D engine for any kind of game
A mobile tower 3D tower defense/defend the flag game
Open Source Virtual World and MMOG Development Platform
This game is a 2d arcade game. You can move, jump, kill monster.