Update: EA’s confirmed that The House of Valor quests are actually DLC which will be released at a later date for the game. Users with an online pass will be able to unlock this for free.
Original: Kingdoms of Amalur: Reckoning is a single player game, however that hasn’t stopped EA including an online pass within the box. What is more surprising is that if you don’t put the code in you will be locked out of seven additional quests.
According to Destructiod, not only will the pass give you access to the Mass Effect tie-in armor, but also an entire adventure The House of Valour Faction Quest, which is made up of seven individual missions.
Publishers including an online pass for a game which has no multiplayer function whatsoever seems slightly puzzling, but it seems that’s just the way things are going these days.