Open-source attempt to write a themeable engine to play mafia-like games with over the irc network. Currently in beta, documentation pending. Functionality currently is limited to simple turn-based vote-killing, code under heavy work.
Protowars is a multiplayer turn based strategy game. The key difference is that the user will design its own units using pre-made parts available to all players. Users will be able to design their own maps and vote for new parts for all.