Horizon Chase Turbo
This turned out to be much more fun than I expected. I was browsing my library with my girlfriend, trying to find something to play when it caught both of our eyes. Considering you can play all modes with extra people, that adds a lot to the experience. Some of the stages are downright beautiful too, with a strong 80s aesthetic and changing background.
I had tried a few other auto-chess games and never had much fun, so I decided to try out the "official" one. The in-game tutorial doesn't really prepare you for success in any feasible manner so after watching an hour long tutorial on YouTube, I felt prepared to play properly. And what do you know.. it's pretty fun. The game seems to be in some form of beta, so there's a few kinks to be worked out (and a progression system waiting in the midst) but I understand the appeal now. I still don't see this thing taking over my life, but I'm in for a few games a week.