This game looks really cool but I couldn't get it to run on my mac for some reason. Usually this is pretty standard when downloading software that isn't on the app store but the fix is usually to go to System Settings > Privacy & Security > Scroll all the way down to the bottom where it'll have a warning about the unidentified developer and hit 'Open Anyways'. In my case, I don't even see that warning at the bottom so I'm not sure what's going on.
If you have any idea if this is just an issue on my end and there's a way to play it on Macs please let me know, would love to give this a try!