.NET Game Engine
Over at bunnz.com, Markus Wob, Alois Zoitl, and Stefan Ortner are working on a game engine called Purple#. There's a few screenshots posted, and lots of cool info... check it out.
(pulled from bunnz.com)
Features
Scripting PlugIns: (JScript.Net, VB.Net, C#.Net)
Scripting Console
Automatic configuration management by using the Purple Serializer
Shader Driven 3d engine with following PlugIns: DirectX9, Cg, (Cg)Fx
Virtual Vertex and Index Buffers
Ex- and importer: Exporter for Maya, Q3 Levels, MD3, ATI Normalmapper, ...
Sound: fMod