The VR_MUSICIEN project is based on the Chromium plateform and allows user to easily port their OpenGL code in a Virtual Reality Environment. This library especially computes the asymetric frustum for multiuser headtracking stereovision.
A graphical isometric multiplayer virtual reality server in MUD-style. Rooms and server code can be changed online. At the moment, there is also an IRC link. Clients are available in Java and Python/C.