The Might & Magic Heroes 6 Website announces the Shades of Darkness standalone expansion is now available for Might & Magic Heroes VI, the turn-based strategy sequel. To celebrate the news, we have some screenshots and the game's launch trailer, and here's word:

A century after the tragic events of Might & Magic Heroes VI, that determined the heroic fate of a dynasty, Shades of Darkness recounts, in two original campaigns, pivotal moments in Ashan’s darker history that will define the future of a decadent underground people and decide the survival of the dying cult of the Spider Queen. Determine the fates of two legendary factions; the Dark Elves of Dungeon and the Necromancers of Necropolis.