The Model Railroad System can help you run your railroad.
2D physics engine for games
Multi-threaded 2D Renderer licensed under the Mozilla Public License
Open Source fishing bot for the MMO World of Warcraft
It's a game based on a puzzle survive sistem.
"Kenny" is an XBoard/WinBoard chess engine based on "Winglet"
3-DPhysicsSim is an interactive 3-D physics simulator.
Basic real-time simulation engine in C++
Mechcommander 2 port
A debugging-themed top-down shooter