Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Cross-platform 2D and 3D game engine
8-bit Graphical API for Java
Simple, open-source 2D graphics for everyone
Simple and intuitive 2D vector drawing for electronics and not only.
CSG for jMonkey
Paint Program
A rudimentary 2D isometric engine
Simple animation of a journey at light speed
Exports Flash .FLAs to GPU-friendly formats
An exceedingly easy-to-use pixel perfect orthographic camera script
.NET wrapper for the Irrlicht Engine
A resolution independent pixel perfect camera for Unity
Virtual paper folding program
Java library for drawing 2D charts with LaTeX math support
3D Architecture modelling and physics simulation system