Ok if you tried something with the terminal just unzip the file for a fresh copy first in case something is wrong with the one you messed with.
Steps:
1. Open terminal
2. Type:
sudo xattr -r -d com.apple.quarantine
3. Drag the game in the folder you just unzipped into the terminal. This should fill out a file path like "/Users/yourname/downloads/city_of_secrets/Game.app" onto the end of the above command.
4. Enter the command.
5. Now right click the game app and click "Show Package Contents".
6. Go to the Contents folder, then the MacOS folder. You should see a file called nwjs.
7. Use terminal and type:
chmod +x
8. Drag the nwjs file into terminal which should fill out a path like "/Users/yourname/downloads/city_of_secrets/Game.app/Contents/MacOS/nwjs" onto the end of the above command.
9. Enter the command.
10. Use terminal and type:
chmod -R 755
11. Once again, drag the game in the folder you just unzipped into the terminal. This should fill out a file path like "/Users/yourname/downloads/city_of_secrets/Game.app" onto the end of the above command.
Your three commands should look something like this:
sudo xattr -r -d com.apple.quarantine /Users/yourname/downloads/city_of_secrets/Game.app
chmod +x /Users/yourname/downloads/city_of_secrets/Game.app/Contents/MacOS/nwjs
chmod -R 755 /Users/yourname/downloads/city_of_secrets/Game.app
This was exactly what I did and it worked. If it doesn't work for you and you are sure you followed the steps correctly... Just bite the bullet and go to the discord lol. But they would probably redirect you to the faq where I copied and pasted this from anyways. Hope this helps!