Pathfinder. For people that play D&D and think “I wish this had more complicated rules…”
But yes, that’s how crits work in Pathfinder - if you beat the target number by 10, that’s a crit success. Conversely, if you miss the target number by 10, that’s a crit fail.
I could try and get into a semantic argument about the difference between “more complicated” and “more complex”, but I won’t 😉
Full disclosure: I play Pathfinder. I haven’t touched D&D in years…