Stride (formerly Xenko), a free and open-source cross-platform C# game
A framework to build Pokémon RPG games
The solution that allows unity games update in runtime
Vivid3D is an open-source 3D engine with powerful 2D UI.
Modern 3D engine and IDE written using C# and C++.
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
3D .NET engine for Windows, Linux, Mac
XNA based game engine completely written in c#
Import war3 resources and redraw in XNA 3.1
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor
SmartMap is an easy desktop random world creator.
A modern 3D App framework using OpenCL to render via raytracing