The walking dead game not loading
 

I got the game the walking dead, it worked great, until one day i was on my skpye on a call and i tryed went on game and it was not working. it said i own the game ( as i do,) and it not a fucking fake copy like got it off someone, and i click play it says loading the walking dead and then it goes off and the game dont go off. i went on the folders steam-steamapps-common and theres no folder called the walking dead so that means the game is not installed and i tryed uninstalling it and installed it and still dont work! please help me! ]