Red Dead Redemption Undead Nightmare

Does not require the Original 'Red Dead Redemption' to play.

Unleashed upon the world of Red Dead Redemption, the Undead Nightmare Pack features an entirely new single-player campaign that follows John Marston as he tries to find a cure for the highly-infectious undead plague spreading across the frontier. In addition to this epic single-player adventure, the Undead Nightmare Pack also features a brand new multiplayer mode in addition to new gameplay mechanics, weapons, undead animals and mythical creatures.