When I first installed Mint I wasn't really sure what to do. I knew gaming on Linux was good and steam has come a long way with proton but I still wanted to see what the software manager had to offer for games.
A couple of them looked like cute little time wasters but I saw OpenTTD and I recalled the Spiffing Britt did a video about that game once before. I decided to download it and I've been addicted to it ever since.
Every aspect of it is enjoyable, but I really found the trains to be the most fun part of the game. Something about setting it all up and just watching everything move along with purpose. It's just so satisfying to me.
Not sure if you've tried it, but it's worth a shot in my opinion. Make sure you download a graphics pack if you're not into the old school look.