The game has stopped working on newer versions of MacOS due to technical reasons that I can't fix right now. For that reason, I've disabled MacOS support for the time being. I'm intending for this to be temporary, but fixing the issue will require quite substantial work and I'm not sure what the timeline for that will be.
Huge apologies for the issues people have had with the game; I'm hoping that a bunch of them can be addressed in a future update. Especially this MacOS issue and the wonky controller support are on my mind. Apologies also for not reacting to these issues sooner.