Unity / XNA game patcher and plugin framework
Simple and powerful Unity3d game workflow!
Framework to facilitate communication in the Unity game engine
A framework to build Pokémon RPG games
An MVVM & Databinding framework that can use C# and Lua
The repository for MonoTorrent, a bittorrent library for .NET
a 2D Game Development Framework
3D .NET engine for Windows, Linux, Mac
Make robots for MediaWiki-powered sites!
A generic framework for the generation of game levels.
c# game server framework
Superseded by OpenTK: https://sourceforge.net/projects/opentk/