The defeat of Diablo, Lord of Terror, should have given rise to an age of hope. Instead, it has drawn out a shadowy being of immense power, whose malevolent purpose is yet to be revealed. Diablo III: Reaper of Souls, the upcoming expansion to Diablo III, opens a dark and terrifying new chapter in the ongoing conflict over the mortal realm of Sanctuary.

Malthael, the fallen Archangel of Wisdom, vanished after the events depicted at the end of Diablo II: Lord of Destruction. In Reaper of Souls, he returns as the Angel of Death and seizes the Black Soulstone, which contains the essence of the Prime Evil. It now falls to the players to track down Malthael and stop him before he unleashes irreversible havoc on the world.

Fortunately, a new hero is ready to join the cause and bring Malthael to justice—the Crusader. Driven by a centuries-long quest to cleanse the corruption blighting their beloved Zakarum faith, Crusaders are warriors of righteousness who have been hardened through relentless, brutal combat with the foul evils plaguing eastern Sanctuary. In addition to wearing immensely heavy armor and wielding a wide range of cruel and punishing weapons, this new playable class in Reaper of Souls uses battle magic to strengthen allies and weaken foes. A natural walking tank, the Crusader adds power and versatility to any party of adventurers.

In addition to taking the story of Diablo III from the legendary city of Westmarch to the unhallowed halls of the Pandemonium Fortress in Act V and introducing the incorruptible Crusader class, Diablo III: Reaper of Souls increases the game's level cap to 70. Players continuing on with their existing Barbarian, Witch Doctor, Demon Hunter, Wizard, and Monk characters will benefit from an array of fearsome new spells and abilities as they advance in level.