Simple GTK# Paint Program
Flexible level editor
This is a Units Editor for Empire At War which will make things easy.
LDraw™ editor for LEGO® style digital building instructions.
Super Mario RPG Editor that can edit nearly everything in the game
3D Game engine
Graphics generator for pie diagram matrix from spreadsheets
Quickly create, edit, and print guitar chord/scale fingering diagrams
A (very) shitty OpenGL remake of MS-Paint