Ubisoft has announced availability today, to all holders of Season Passes , the first downloadable content for Assassin's Creed III : the " hidden secrets " contains the three missions already available for buyers of Freedom and of Special Edition, plus two single-player costumes and two multiplayer characters. The content will be downloadable by everyone from 11 December. Here's the official press release with all the details.

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Ubisoft ^® Announces "hidden secrets", the first downloadable content for Assassin's Creed ^® III

From today all Season Pass holders can download the first DLC for Assassin's Creed III

Milan, December 4, 2012 — Ubisoft announced the release of "hidden secrets", the first downloadable content for Assassin's Creed III. From today all Season Pass holders can download DLC for Xbox 360 versions ^® and Windows PC game, while for the PlayStation ^® 3 you can do so by tomorrow. Hidden secrets will then be available to all players by December 11 on Xbox Live Arcade for Xbox 360 ^® and Windows PCs and from December 13 on PlayStation ^® Network. As a result, the package will be available for Wii ^™ U.

Hidden secrets for Assassin's Creed III adds three bonus missions, ancient Mayan ruins, secret and dangerous Warrior Spectrum, which will offer an additional hour of the game, bringing players between isolated Mayan ruins and stormy seas. Every mission accomplished with success will be rewarded with some weapons to use in the game.
The package also includes:

• Two costumes for single player: the legendary captain's uniform of the Eagle and the traditional colonial costume assassin.
• Two multiplayer characters: the dreaded Red Jackets and the deadly sniper.

The Season Pass for Assassin's Creed III allows all owners of the original game to purchase five planned downloadable content, including "hidden secrets", saving over 25% compared to buying each separately DLC.

The Season Pass for Assassin's Creed III can be purchased for 2,400 Microsoft Points on Xbox LIVE or € 29.99 per on PlayStation ^® Network. In addition, the PlayStation ^® 3 of Season Pass can be purchased at retailers GameStop.

The next downloadable content for Assassin's Creed III will include "the tyranny of Kings Washington", a new single player campaign that will be available in the form of three episodes and that will allow players to experience an alternative version of events following the American Revolution.

It is the year 1783 and while the revolution is coming to an end, now comes a really unexpected enemy. Blinded by lust for power, George Washington was King. To regain freedom, our new hero Ratohnhaké: ton must dethrone the tyrant.

Besides the new single player campaign, the downloadable content for Assassin's Creed III will include new maps and characters for an increasingly extensive multiplayer experience, thanks to the next package "Hardened by war".