I played a game that lasted only 10 minutes and it was glorious. It also cost me five bucks. Yes: I am saying that a game that amounts to one dollar per two minutes was worth the investment.
Look, I'm not gonna mince words here. If you own a PC, you owe it to yourself to play Gravity Bone. I don't want to tell you what it's all about, since the game is so short that even telling you the setup would give you information in the same amount of time that you could just experience it for yourself.