UCI chess engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Computer opponent for the board game Blokus.
Zoomable user interface (ZUI) with file manager, file viewers and more
A free Chess program for Windows with a large set of features
Bots for the Half-Life mod Firearms 3.0 and Day of Defeat 1.3
3D modeler, 3D game maker, 3D demo maker
LDraw™ editor for LEGO® style digital building instructions.
An isometric arcade-style game of skill, puzzles and exploration
A collection of games representing each gaming generation.
Janken - A Simple Rock, Paper, Scissors Game
Convert PSID and RSID files into C64 executables
Trains quickly score reading and piano playing (MIDI-keyboard)
a race scenario drawing tool
VenenuX's development and software contender
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Opensource Game Studio