Yeah there's no way to fix the Mac issue, unfortunately. If you aren't aware, you can probably get the game to run in your browser with the Web version in the download folder. (You'll have to follow the instructions on setting up your browser on the download page.) The web version won't work with the plugin that changes your characters sprite to match their clothes and skin color, and won't show your appearance changes on the players face when talking, but otherwise should work.
Viewing post in Version 0.51 Public Release/Version 0.52 Changelog comments
I have actually gotten the Mac version to run by using the command "sudo chmod -R a+x " (with the space at the end) and then dragging in the files that need to be executable. It becomes somewhat playable but you cannot save or open the options menu for some reason! anyway The we version is probably the next best thing but honestly I'm not exactly too upset about it lol I still enjoy the game from what I've played and I appreciate your replies thus far! keep up the great work and maybe one day everything will get worked out across all platforms :)