hi there don't know if this will help ya! This is a fix if your game icon pops up then closes and never opens the game.
if you open the terminal on mac then type
sudo chmod -R 755 /path/to/app. sudo xattr -dr com.apple.quarantine /path/to/app.
obviously delete the path to app section and put your actually game file. you can do this by dragging the app icon to the terminal and it will copy the pathway
This is a pretty common fix on macs
doesn't always work on first try but might help!