In celebration of the Undead Nightmare retail disc package that was just released for Red Dead Redemption and includes all previous DLC, Rockstar Games is having a double XP weekend event for this Thanksgiving Holiday. The event actually starts this Thursday, Thanksgiving Day, and will run through the rest of the holiday weekend up until the 28th. The Undead Nightmare retail disc will run you $29.99 in the U.S. and the U.K. will have to wait until November 26th to see its release costing £24.99. Fortunately you don’t need any DLC or retail discs to participate in the double XP event. The retail disc however is stand alone and you won’t need the original RDR disc to play all the DLC, just pop it in and play. Just a reminder for those who are interested in the Undead Nightmare DLC, it specifically adds the following to the game: