A re-implementation of Freelancer
Official binding of SFML for .Net languages
inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal
A low-level, portable graphics library for .NET
A tiny, cross-platform, module based web server for .NET
Teach retro game development with streamlined workflows
iDev Development Studio is a WYSIWYG application development platform
3D .NET engine for Windows, Linux, Mac
Make robots for MediaWiki-powered sites!
Fully fledged steam community SDK
Superseded by OpenTK: https://sourceforge.net/projects/opentk/