I was able to run it after changing permissions to the executable, something like `chmod +x Deadly\ Arena.app/Contents/MacOS/Deadly\ Arena`.
I'll have to try that, odd as the error didn't suggest a permission issue the way it normally would but will give it a go. Cheers
Apple is kinda hostile towards apps that doesn't come from their AppStore.
It's sometimes less hustle to run a windows game with wine than a native mac app.
¯\_(ツ)_/¯
