You go to settings. Then security and privacy then the privacy tab.Scroll down the left side thingy and choose (depending on where you put the game) Full disk access or files and folders. Then once you have chosen how much access you want the app to have. You click the plus button under the right box. Put in your password so you can do it. Find the game in finders and then just click the game and press open. Boom done you should be able to do all the jazz. Person above didn't say how so i just gave the method. Hope you have fun! :) ;)