There is an abundance of open world gameplay in "Assassin's Creed IV: Black Flag" for the single player story mode, but not all might be available for free.
While multiplayer content only being access by an online pass isn't new to gamers, having to pay for single player missions is a foreign concept.
Ubisoft's official website states the Uplay Passport "will come with a unique code that, when redeemed, grants you access to online multiplayer play, bonus content, and more. In instances where your game's Uplay Passport has already been redeemed (such as if you've bought a used copy of a game) you will be able to purchase a new Uplay Passport code online."
However, Game Informer reports there is a "noteworthy element" of the single-player campaign that you cannot access without a pass.
"When protagonist Edward Kenway boards a ship, he has the option to add the ship to his fleet. This fleet functions similarly to your assassin recruits in previous titles; you can send them on missions, and after a varying number of real-time minutes, the ships return with money and spoils," Game Informer reports.
"However, we've confirmed that your access to this whole loop is gated by the Uplay Passport," according to tech site. "In other words, if you borrow the game from a friend who has already redeemed the code (or buy the game used), you don't get the fleet and the benefits that come with it in your single-player game."
Ubisoft has not confirmed any single player content needs an Uplay Passport to access it. "Assassin's Creed IV: Black Flag" was released on Oct. 29 for the PS3 and Xbox 360.
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