Vivid3D is an open-source 3D engine with powerful 2D UI.
Modern 3D engine and IDE written using C# and C++.
Portable game engine with main focus on point-and-click adventures
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
A cross-platform game framework based on OpenGL and GObject.
A 2D tile map editor created using .NET framework.
Multi-Language Wrapper Collection for the Irrlicht Engine