For me it’s first person puzzle games. I can think of maybe a dozen off the top of my head that came out in the last decade. I especially enjoy when they’re open world. The ability to just quit a puzzle that’s stumped you and go try something else for a little bit is incredibly refreshing.
I started reading Mort (Terry Pratchett) and it reminded me of the Discworld MUD I played with my friends in the 90s, on dial-up, all crowded around a single 13" CRT. I looked it up, and it’s still running!
That’s awesome! I’ve noticed it on lists of top voted MUDs for a long time, but never quite got into that particularly flavor.