Hi! Just going to quote a previous response we gave someone with similar problems.
"Someone also brought up this issue last year, and it seems there could have been a possibility of a compatibility issue because they were using an older version of Mac (2013 Macbook Pro). We were able to gain access to testing on a Mac and also ran into the same issues, but we're unsure if all Mac users have had the same experience.
After doing some research, we found a resource that mentioned using an emulator on the Mac to be able to run the Windows version of the game, as there is a possibility our Mac distribution is incomplete. However, we haven't been able to verify if it fixes the issue for our game. We will be uploading separate distributions for Windows, Mac, and Linux for our upcoming build, but we are unfortunately unable to provide a specific release date for that update."
Our future build will have completely separate distributions for Mac and PC, instead of the market distribution we currently have. We believe this would fix the issue of TGC not working on Macs. I would recommend waiting until we release our completely new version to try out the game.
I hope this is able to help, and apologies for the inconvenience!