In Diablo III, an action adventure role playing game, the main action is around defeating the Lord of Terror, Diablo. To do this you will play characters of Crusader, Demon Hunger, Barbarian, Monk, Witch Doctor or Wizard. Each character has different skills that are used to fight. These skills include, curses, power spells, powers, teleporting, martial arts, throwing bombs, hammers, and using lightning strikes.

When a mysterious star falls down, it unravels the dead in a crater along with destroying the Cathedral. Deckard Cain who disappears in this crater needs to be rescued. There will be various creatures that need to be killed to combat in the end the Lord of Terror.