Hierarchical Cluster Engine project
Software for data analysis, image processing, simulations, solver.
Cross platform 2D game creation framework with Python bindings
Open source, moddable game engine for the "Polygon Love 2" game
Tactical, turn-based game engine, that uses OpenGL and WinAPI
SuperWikia: The Runtime/Realtime Environment for Codesmiths
The Lambda-Engine is a cross platform game engine.
Bruno's RAY Tracing Engine
A powerful cross-platform and open-source 3-D rendering engine.