Hi! I'm really excited to play this game, but as soon as I purchased it, I was given a notification that the file was damaged and unable to be opened (mac version). 
UPDATE: This seems to be bug in Unity / Apple's code-signing, so we're pulling the Mac build for now. If you've bought a broken copy, please let us know (info@inklestudios.com) with some proof of purchase and we'll supply a Steam key (the Mac version on Steam is fine, for some magical reason). Apologies again.