paradox map staring games. just pick one that looks cool and go in blind and fail a bunch and suddenly waow it's 5 hours later and the sun is coming up.

classic JRPGs, turn based non-active battle systems with easy exploration, and if it doesn't have spoken dialog it's great for podcasts or youtube on a 2nd monitor.

fromsoft type games if you're into that sort of thing can be huge timewastes too just getting lost getting your ass beat.