Twitch offers Twitch Prime members downloads of Superhot for Windows for free. (Twitch Prime is included with Amazon Prime; you can link the accounts when you sign up.) That's $12 under our July mention and the lowest price we've seen. (It's the best deal now by $12.)
Dollar stores lure us in with their rock-bottom prices, but not everything is a bargain. We suggest you steer clear of these items.