A modern cross-platform low-level graphics library
pyglet is a cross-platform windowing and multimedia library for Python
Functional Reactive Programming domain-specific language
The open sourced NetRexx reference implementation
Console-based GLSL Sandbox for 2D/3D shaders shaders
Growth-grammar related Interactive Modelling Platform
Realtime 3D engine for game development
3D .NET engine for Windows, Linux, Mac
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor