Tools recording, mixing, mastering and delivering music tracks
A barcode library/module for python.
Resilient Image Library - successor to DevIL
Cross-platform reimplementation of AMOS BASIC (runtime)
Support for legacy OpenGL in core profiles
Cross platform C++ library for developping audio plugin´s UI
PHIGS (Programmer's Hierarchical Interactive Graphics System)
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor