Assassin's Creed 3 Season Pass holders get the game's first piece of downloadable content on Xbox 360, PlayStation 3, and PC today. Titled 'Hidden Secrets,' the content becomes available for everyone else to purchase on December 11, except for Wii U owners who'll see it come to their systems at a later date. In Europe, Season Pass owners on PS3 must wait until tomorrow to access the DLC, and those without Season Pass until December 13.

Hidden Secrets contains three extra missions including Lost Mayan Ruins, Ghost of War, and A Dangerous Secret, all of which featured in various pre-order bundles. The trio totals in at an hour of bonus gameplay, according to Ubisoft. The DLC also comes with Colonial Assassin and Captain of the Aquila costumes for single-player, as well as Redcoat and Sharpshooter characters for multiplayer.

Ubisoft also confirmed today the upcoming The Tyranny of King Washington campaign is split into three separate packs. An Assassin's Creed 3 online survey discovered last week suggested each pack is around two hours in length. Also now officially revealed is 'The Battle Hardened' pack, which includes new maps and characters for multiplayer.

Hidden Secrets, Battle Hardened, and the King Washington trio appear to make up the five packs announced as coming to Assassin's Creed 3. All five are unlocked via the game's Season Pass, available on Xbox Live Marketplace for 2400 MSP and PSN for $29.99.