Who reading this has played any of the Resident Evil games? What about Left 4 Dead? Dead Rising? Zombie Apocalypse? Great, so it’s safe to say you’re familiar with the qualities intrinsic to the quintessential survival horror title: tension, fear, amusement, challenge – yes? Fantastic. Then this could be the easiest review I’ve ever written, because Undead Nightmare, the latest expansion pack for Rockstar Games’ well-received western Red Dead Redemption, is going to be right up your street.