The Elder Scrolls IV: Oblivion
This game got the "Game of the Year" award at the Golden Joystick Awards. Many gaming magazines such as the official Xbox magazine for the United Kingdom rated it a 10 out of 10. The game is only offline. It can not play against people on Xbox Live  although people can download extra content for the game. The extra content can also be bought on a DVD or Blu-ray. Some of the downloadable content comes with the Knights of the Nine retail disc.