I can’t open it because of some thing about just MY Mac, something about not being able to find the person who made it, I dunnno
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Ah, thanks, yeah, that's probably related to Apple's new requirement that every developer pays them a fee to sign their app. I'm... not going to do that for a free game :)
Instead of downloading the game though, can you just hit the play button on this page and play the game in your browser?