Oblivion tasks players to develop a character and explore the fantasy realm in an open ended free roaming way, choosing how to play out the many quests according to the players own vision of their character.

The Shivering Isles introduced a whacky Good vs Evil, Black vs White land of contrasts and more than 30 hours extra adventuring, whilst Knights of the Nine expanded factions, quests and items of the original Oblivion setting.