- Give execution permission:
- Open the Terminal app on your Mac.
- Type chmod +x (make sure there is a space after the x).
- Drag the game application file (.app) into the Terminal window and press Enter.
- See about the "Quarantine" attribute
- Launch the game by right-clicking the app and selecting "Open".
=>for step 2, type ‘xattr -dr com.apple.quarantine’, do a space and then drag the file here again
Hope you succeed ^^
Credit to Orautumn for this comment. I am merely reposting to assist