Audio server, programming language, and IDE for sound synthesis
Free and open source voxel art tools - editor, thumbnailer and format
Nyquist is a language for sound synthesis and music composition.
itom - an Open Source Measurement, Automation and Evaluation Software
Audio DSP FX and plug-ins, mostly for guitar (amp sim) and other FX
GLSL shader prototyping tool based on Eclipse IDE.
Chess game interface
Displays your photos on the walls of a maze