I'm trying to play the game but it just stops loading when its just about done.
Is the game not supported on the OS X MAC?
The download version is Windows only right now, but the in-browser version should work on Mac as long as you're using Safari 9.0 or newer. Chrome and Firefox should also work. Which browser are you using?
I am using safari 9.0.1 and it does the same thing for me where it stops loading when its almost done.