Games/puzzle

Me and My Shadow
Me and My Shadow is a free libre puzzle/platform game in which you try to reach the exit by solving puzzles. Spikes, moving blocks, fragile blocks and much more stand between you and the exit. Record your moves and let your shadow mimic them to reach blocks you couldn't reach alone. It features over 40 levels and 18 different block types and also comes with an ingame map editor.

YouTube demo

Nerverball
Tilt the floor to roll a ball through an obstacle course before time runs out. Neverball is part puzzle game, part action game, and entirely a test of skill.

YouTube demo