Zombie Apocalypse RPG

4 years ago the world was normal. People laughing, talking, everything was just as it normally was. Although one day a scientist was attempting to discover the cure for cancer, but it ended in an air born toxin that created zombies. With that the world went into chaos.
Fast forward 4 years and it's not changed a bit. Zombies everywhere the buildings crumbling in the brink of collapse with greenery lining the walls of them. The zombies could be Walking Dead zombies or Day Z zombies, any kind you want. Live it however you could even be a zombie yourself.