Everytime I ask my friends to play this certain game, and its not compatible for them because they use a mac! So I'm just gonna ask what kind of good games there are for mac.
I run contract Wars at 30fps max on absolutely bottom settings and resolution on my 2011 MBA. Often it can be less than that. Bloons works okay until later levels..
Well could always load up steam. No issues with games there. Or if playing with friends how about smite, its an awesome game to play in a group.
I run a Mac at home as well, would just suggest the all the Blizzard games, been playing WoW on it since a decade ago. They've made them all mac-compatible except for their latest game Overwatch.
If you do have the space to spare I really would suggest dividing part of it for a Windows partition!