SkiaSharp is a cross-platform 2D graphics API for .NET platforms
Explore and dissect a complete brain model in VR
A VR puzzle game for Cardboard using Unity
3D .NET engine for Windows, Linux, Mac
Dragging and Dropping Components for Multi-projection Applications
XNA based game engine completely written in c#
Investigo - DX9 Performance and Debugging Toolkit
A c# 2D Vector Graphics Library - and more.