Namco Bandai has announced that the new content included in the Prepare to Die for PC of Dark Souls will be available this winter on Xbox 360 priced at 1200 Microsoft points. The new expansion, which takes the name of Artorias of the Abyss , includes new explorable environments, bosses, enemies common, non-playable characters, armor and weapons, which fans of PC gaming can already put a hand on 24 August. We leave the trailer that summarizes some of the new features and showing the unseen boss battle.