Project Angela is a family of ruleset modeling language (RML) interpreter components written in python. It is intended to easily enable RML support for a variety of different simulation engines, game engines and MMO frameworks.
FreeTribes is an empire building, highly strategic MMORPG. The game in its entireity is being completely re-written from scratch, under GPL and will use Python and PHP. More information at http://www.phplogix.com/wiki/
Eternal Warfare is turn driven, browser based game. It will have multiple realms to play through and eventually travel back to. Development will be focused mainly on community driven systems and will also create a flexible character development system.