Even on a newer version of a MacBook Pro (Mid 2015, Raeon or w/e card, i can list specs if it's THAT important), it makes my laptop fans turn on starts to overheat like there is no tomorrow. I play on medium graphics, and it runs kinda slow in really crowded areas.

I would be super wary of playing on a MacBook Air. Like, super wary, as in, I would not even chance that.