The Mac version is a simple Wine wrapper around the Windows version. Let me see if I can get it up and running here (I'm on 10.14.4).
I see that this game was created using the Adventure Game Studio, so there is an easier (and MUCH smaller) way to port the game over to the Mac that will run on macOS Mojave and Catalina. I'm testing out a port of the game. I'm not using Wine, so the app has been reduced from a hefty 590 MB to a svelte 57MB.
I've learned about a way that uses a small shell Mac app and the resources of an AGS game can be put into the app. This greatly reduces the size of the app so all of the Wine-related files are not necessary. I've already helped port a couple of apps to the Mac. I have an extensive blog post that I'm writing which will detail more of this process which I'll release some day.