Getting impatient waiting for the Mac version of Simcity...

soooo... I really, really, really want to play Simcity, but it won't be available for a while. Does anyone know of any good Mac-compatible alternatives I can play until then? I tried Simcity 4, but it's too old for Mountain Lion.

I could simply install Windows via bootcamp, but unfortunately, I'm on a Macbook Air with not much room for two OSes.

AAAGGHHHHwhere's my SimCity fix?!