(Wait, 296 days???. Anyways, I am going to write it...)
BIIIIIIIIIIIIIG NOTE: IF IT DAMAGES YOUR SYSTEM, REMEMBER IT IS NOT MY FAULT!!!. THE GAME WAS OPENED, I CLOSE THE GAME AT THE SAME TIME I OPEN. (I used google translate and my english.)
I used xattr to open it:
1. Open terminal
2. Copy and paste this:
xattr -cr /path/to/application.app (Do not forget to add ".app" extension to the end. Do not add "/" to the end. Add double quotes when you use space.) ()
Edit: I deleted the install link because it's not working too.
Links that I used:
https://osxdaily.com/2019/02/13/fix-app-damaged-cant-be-opened-trash-error-mac/#... - If it is not worked use this link and go to "4":https://osxdaily.com/2019/02/13/fix-app-damaged-cant-be-opened-trash-error-mac/