Shadertoy - Build shaders, share them, and learn from the best community.

Particlescape - Particlescape app lets you create stunning patterns at your fingertips.

KodeLife - Real-time GPU shader editor, live-code performance tool and graphics prototyping sketchpad.

TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.

Shader Editor - Android app to create GLSL shaders and use them as live wallpaper

Heat Pad - Heat Pad – Relaxing Heat Sensitive Surface is a beautiful app that simulates multiple heat-sensitive surfaces reacting to the heat of your fingertips.