Zoomable user interface (ZUI) with file manager, file viewers and more
Open source simulation game based on Transport Tycoon Deluxe
A lightweight online game framework
An award-winning drawing program for children of all ages
FlightGear Flight Simulator: free open-source multiplatform flight sim
A free transportation simulator game
RTS game with the theme of Strategy by Design
Ad free open source TV guide for more than 1000 channels.
Chess Database and PGN viewer
A standalone UQM mod made to enhance gameplay and visuals
A strategy game with a high fantasy theme
A very efficient tutor.
Chess Database and Toolkit program
Odamex is a free, cross-platform, modern client-server Doom engine
Robocode is a programming tank game for Java
Colonize the New World.
Open and edit the archive files used in over 4200 games.