Unmechanical is brilliant. Is that an unreserved recommendation? Alas, it is not. It's a quirky, oddball thing, neither particularly long nor especially challenging. It's a sight-seeing tour with puzzles. I love it. You may not. But you'd be crazy not to at least give it a chance.
Unmechanical is a cute, side-scrolling adventure-puzzle game set in a bizarre realm of mechanical and organic machines, and if the announcement trailer is anything to go by, it could be great.