There's also a tiny sale
I really enjoyed my time with Tiny Brains on the PlayStation 4, and now, people can pick it up on Steam. It'll be on sale for 30% off ($13.99) until December 18th, at which point it'll revert back to the standard price of $19.99.
For the record, the game is a tad less fun if you're just playing by yourself, but the sale price should help alleviate that hit a bit. Additionally, there is full support for local and online play, so don't worry too much about scrambling to find friends!