Tgatb is a 2/3D client for a MMORPG using SDL libraries, written in C, so it should compile at least under Linux, Windows and Mac OS. The game server is up and running, so you can log into the game and start playing. A client for Linux and Windows is available.
Open Source Avatar files for virtual worlds. The Second Life Avatar can be used on other SL-Grid based worlds like OS Grid, InWorldz, Meta7, and many others. In the future we hope to include avatar data for other worlds.