Latest Mac version still doesn't work, sorry!
First of all it's compressed as a folder, not as an application (need to add .app to the end of the folder name), second it doesn't have execute permissions, and third it just doesn't work in the first place. Running via command line (to get output) shows the following error:
dlopen(jre/lib/jli/libjli.dylib, 1): image not found Error: failed to load VM runtime library
This appears to be an issue with linking of your compiler settings, as the dynamic library isn't being linked/compiled properly.
Update: Just wanted to add for anyone trying to play on a Mac; if you have Java installed on your system then you don't need the Mac version of the game, just download the Win64 version and double-click the .jar file that comes with it, it's the actual game executable anyway (the .exe is just a launcher).