Red Dead Redemption [Game of the Year Edition]

Red Dead Redemption: Game of the Year Edition will include the full, original Red Dead Redemption game; all free and paid downloadable content packs released to date, including the wildly popular Undead Nightmare single- and multiplayer offerings; and all bonus content.

Original Red Dead Redemption game with a brand-new hardcore single-player mode
Undead Nightmare single-player campaign and multiplayer* modes
Legends and Killers Pack*, featuring additional multiplayer map locations, multiplayer characters, and the Tomahawk projectile weapon
Liars and Cheats Pack*, including the Stronghold multiplayer competitive mode, Free Roam gambling games, multiplayer horse races with combat, and the Explosive Rifle.
Hunting and Trading Outfits Pack, featuring two outfits with corresponding gameplay challenges for John Marston
Outlaws To The End Co-Op Mission Pack*, including six co-op missions for up to four players
All original pre-order content, including the Deadly Assassin Outfit, War Horse, and Golden Guns Weapon Pack
Solomon's Folly single-player gang hideout and challenges available for the first time on Xbox 360
Just-released Myths and Mavericks Bonus Pack, featuring fan-favorite multiplayer characters and all-new locations to battle in.

Source: TheGamesDB