Mac Install Fails?

[Jonnie Cache]

Maybe the software isn't available for the Mac yet? It shows up in my Library as a Mac game, though.

When I go to install it from Steam, here is what the installation screen shows:

The installation takes 0 seconds and obviously didn't download or install anything. However, when I try to launch, it shows this:

 

[Bubbasan]

The Beta is over. It ended in January. Unless you made a copy to a separate directory, it cannot be played. Has nothing to do with it being a Mac.