Warning: Red Dead Redemption is rated M for Mature. That means that as a responsible parent, you should not let your children under the age of 17 play this game. The game contains blood, violence, nudity, sexual content, strong language and drug use. You have been warned.

I’m looking forward to this. Red Dead Redemption is one of my favorite western games I’ve ever played. For the most part, the only western game I’ve ever played. How else can Rockstar possibly make it any better? Well, with zombies of course.

Follow John Marston in this nightmarish adventure as he tries to find a cure for “a virulent plague turning people into flesh-eating crazies” (as Seth Briars so eloquently puts it in today’s new trailer).

Featuring a full new single-player story with all new gameplay and multiplayer modes — along with new weapons, zombie animals, mythical creatures and even a brand new secret location – the Undead Nightmare Pack will be available very soon for download via PlayStation®Network ($9.99) and Xbox LIVE® (800 Microsoft Points).