3D Engine c++
a 2D Game Development Framework
.NET wrapper for the Irrlicht Engine
3D .NET engine for Windows, Linux, Mac
Multi-Language Wrapper Collection for the Irrlicht Engine
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor
Isometric engine for 2D rendering with XNA and SDL
A modern 3D App framework using OpenCL to render via raytracing