Conway's Game of Life whit some extra ideas and enhacements
Pig2D is a game engine for Java that uses a sprite-based interface.
Reference implementation for the Doom game engine.
This is a base PHP framework for making simple websites with clean URL
Tikal Online - 3D MMORPG (Torque/Python)
Flyweight BPM system. Include Workflow,Form,Report etc.
3D Engine technology with partial tools developing kit.