GemRB is a portable open-source implementation of the Infinity Engine
XMLTV obtains and processes TV listings data
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Arianne is an engine to develop multiplayer online games like Stendhal
Cooperative multiplayer graphical RPG and adventure game
WW2 U-boat simulation
Swap stuff in Streets of Rage 4!
The Sokoban game implemented in Java.
Retro style, multi-platform soccer game
INSTEAD - Simple Text Adventure Interpreter.
Create meks and more!
Enigma is a puzzle game
Game engine supporting many 3D/2D formats and graphic effects
Cross-platform, GPL reimplementation of the classic : Syndicate
Cross-breeding a 3D FPS with a fantasy RPG in the world of Hexen