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’ve been playing Beyond All Reason, a free RTS that’s like Supreme Commander or Total Annihilation. The game handles 8v8 team games quite well, I’ve never played on such large teams in a RTS game, it’s fun.