The Heroes of Might and Magic III, 25 years old and still awesome. I honestly think it’s the most replayable game ever (at least for me). Plenty of maps out of the box. Most of them can be played with a different town each time. If you’re done with that, you can change the difficulty. If you’re done with that, you can change the hero. If you’re done with that, there are community maps. If you’re done with that, there are community mods, which also have other maps. It goes on and on. And it’s so easy to just chill as it’s turn based, so no need to pay attention much, unless you really want to. I like playing games while I watch YT, and H3 is perfect for that. I love it haha

It’s probably not for everyone, but everyone has to try it at least once (the GoG version tho, forget any other ones exist).