TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.
Humaaans - Mix-&-match illustrations of humans with a design library.
Particlescape - Particlescape app lets you create stunning patterns at your fingertips.
Handsome Illustrations - Create unique illustrations for websites & applications.
Fluid dynamics - Fluid dynamics developed and published by Reinder Nijhoff.
Blush - Illustrations for everyone