Well, I’ll settle for basic computer literacy as I still run into college students without a working knowledge of file systems… buuuut one would argue it’s worth covering the basic building blocks of how all this works.
I’ve heard similar arguments for teaching people the fundamentals of how data works too, as we have data harvested from us at alarming rates and knowledge is power.













You could get into Dragon Quest games, if you want old school JRPGs. Complexity might be a bit lacking given the era, but doing the old NES ones without a guide is excruciatingly difficult and you can lump on RetroAchevements to add more pain. RA generally adds additional challenges to any older game so you have to play a little min maxing to accomplish them.
I mostly thought of it since RA is beta testing multi sets with DQ9 and getting every accolade might be one of the most insane things I could ever suggest.