Permuted picture puzzle, allows using your own PNG pictures.
Klotsky class block slider puzzles.
kid-friendly retro point & click 3D OpenGL "adventure" game
3D slider puzzles for kids; helps teach solid geometry
Soccer-themed 3D Sokoban Game
Unique 3D slider puzzle that looks like a rubics cube.
3D OpenGL dungeon game using Ada: a tribute to Narbacular Drop