hi not sure if this will help but i'm also a mac player the method i use is to right-click the game to open, then it'll says the file cannot be open so you would have to go to system > privacy&security > scroll down you'll find section where it say the file cannot be open with the 'open anyway' button. After you clicked that you just have to try open the game repeatedly, the first three of four times the game will start but turn black screen after a few seconds so you have to keep trying then it'll work perfectly fine. hope this help!