No, contrary to popular belief, I’m not going insane. Kloonigames is offering a ludicrous deal. You can purchase Crayon Physics Deluxe (which has a solid Metacritic score of 79, mind you) for whatever %$&#ing price you want! Seriously! The offer, in celebration of their birthday, lasts until January 15th.
Crayon Physics normally goes for $19.99 on Steam, so you really have no reason not to buy this. The minimum “donation” is $0.01 though, but seriously, don’t be a cheapskate.