Yeeeeeah so according to my Macbook, I don't have permission to open this? Somewhere down there in the comments the creator offers a workaround via executing a line of code into the thingy so I opened terminal for the first time ever and dinked around for half an hour pretending I was a computer hacker - long story short, if you have a Macbook and you're dumb like me then this game is not for you, sorry.
***EDIT*** Game works with the permission fix! Absolutely worth checking out. It's great. :)