Slitherine

I have just bought the game Mac version, finished the download on my mac book pro. I then unziped the downloaded file which give me another file named 'pandora'

When I click on this file nothing happens... I can explore the file in there but cant find any install or exe to launch the game?

Don't know if I am being a total noob or really missing something obvious but a little help on the install process would be appreciated! Thanks

Ok problem solved, I realized my OS version was not updated. I downloaded the upgrade and now game is working fine