Interesting, I have quite the opposite of a problem. For years now, I’m trying to find competitive multiplayer (fps) games which reward skill alone but to me they all feel too casual, are dead (afps) or are too slow (tac-shooters). The earliest multiplayer games were the most competitive ones, it got more casual when an industry formed around video gaming to appeal to more people. There are tons of multiplayer games with a completely casual environment. Im thinking of genres like couch-coop, survival-craft, social deduction, some city builders or maybe even Nintendo games. Maybe take a look at those.