Java Settlers
Java library to BiDiB (see http://www.bidib.org/)
Event driven concurrent framework for Python
Collection of Tools for Perfect World MMORPG
Runescape 2007 / oldschool client with many features.
A QuakeWorld package containing everything needed to play QW right now
A modern "graphics" API for text-based applications
Mu Online Launcher
Proxy for games that emulates network conditions like ping and lag.
Chat Messenger - Open Source Social Network - Online Chess Game
Sauron Mod for Minecraft