Unmechanical (2012)
A cute little puzzle game where you play a robot helicopter thing and solve puzzles. That's it really, as far as I can tell there's no story and I've only seen a handful of other robots, but I think it's kind of left ambiguous for the player to make their own story. The puzzles are all pretty straight-forward, but in a good way. Unless you're very thick I don't think any puzzle will take you more than 20 minutes to solve and it is cute how some puzzles are connected to others later down the line. Visuals are quite well done but the game is quite short so I'd suggest picking it up on sale, which it is right now, $2.50 on Steam. Well worth the money if you're in-between games right now and just want something short and easy to kill some time.