The game takes place in Sanctuary, the dark fantasy world of the Diablo series, twenty years after the events of Diablo II. Deckard Cain and his niece Leah are in the Tristram Cathedral investigating ancient texts regarding an ominous prophecy. Suddenly, a mysterious star falling from the sky strikes the Cathedral, creating a deep crater into which Deckard Cain disappears.Visit www.battle.net
At the top of the page, click “Create Account”.
Go to account page. After logging in to your account, click the “Add Game” button.
Enter your game key in the empty field and click ACTIVATE GAME.
Run the Blizzard Downloader to download the game.