GemRB is a portable open-source implementation of the Infinity Engine
Arianne is an engine to develop multiplayer online games like Stendhal
Cooperative multiplayer graphical RPG and adventure game
GM tool for the RPG game "Legend of the Five Rings" 4th edition
A roguelike, contains binaries and source packages for
Provides a full suite of clients and servers for virtual worlds.
Random dice roller and modifier calculator for console
LAIR is a Sandbox Dungeon Crawling Game
Experiments in turn based strategy gaming.
Cross platform 2D game creation framework with Python bindings
Beyond dreams is a 3d solo/mmorpg game currently in developement.