itch.io

I also couldn't get it to work even though I put it in my Applications folder. I did what you said here, but when I tried to open the game from Terminal, the spaces between the words in the file name seemed to freak Terminal out. So I actually had to remove the spaces in the file name, as well as in what I typed into Terminal, and then it worked! But don't forget the "open" command before the file path. :) (I'm new to Mac and didn't know you had to do that) Also I had no trouble with animation smoothness even in full screen. I don't know what's causing all these issues with Sierra; is it better in High Sierra?