Simple and straight forward app is Bottles, get it on your app store. I was trying to get Farming Simulator 2013 installed and it "just wouldn't install" under lutris so I tried bottles and it worked, just worked. My only issue now is mounting non .iso iso like .ccd .img and one more I can't remember now.
EDIT: Anyone used CDemu to mount .img or .ccd? Does it work? what about converting these files to .iso with ccd2iso or acetoneiso?