Slay the Spire, nah, card games don't appeal to me.
Surviving Mars is one of many games on my wishlist, but it looks like a pretty limited and cheesy city builder based on the pics and reviews so it's something I can warrant paying $30 for. Might be something I buy in the future during a sale if it's half the price or lower.
https://steamcommunity.com/id/Zytukin/