Open-Source Massive Multiplayer Online Role-Playing Game engine. Server is semi-free, open for non-commercial use. Client is free software and the content is proprietary. Rehash from a 5-year-old project, active again since august 2007.
ATOM3D.NET is a Realtime 3D Game Engine thats inded to support everything needed to create games. A3D.NET will support Graphics through OpenGL and DirectX, Sound, Network, Physics, GUI and more.
A3D.NET is a complete state of art game engine.