Yeah, like DNU said, something more grindy. Or something difficult. So more like PoE where you can play thousands of hours without seeing everything or knowing everything. Or like Black Desert Online with its afk mechanics. Or a game with a lot rng like dwarf fortress or rimworld.
Or speedrunning stuff. But some kind of idle… 😅 indeed unexpected.
Well maybe it is because said games are my timesinks… Even though I haven’t played any game as long as he/she did.