Diablo is a dark, fantasy-themed action role-playing game developed by Blizzard North and released by Blizzard Entertainment on January 2, 1997.
An expansion pack, entitled Diablo: Hellfire, was released in 1997, although it was not created by Blizzard Entertainment. This was followed by a sequel, Diablo II, in 2000, and a third game, Diablo III, was announced on June 28, 2008, at Blizzard's World Wide Invitational in Paris, France.
The cathedral of the city of Tristram has begun cults of satanism and wizardry. With Archbishop Lazarus' betrayal, many have died, and Diablo, Lord of Terror, rises once again to release his nightmare upon the world of Sanctuary. The player takes control of a lone hero battling to rid the world of Diablo. Beneath the town of Tristram, the player journeys through sixteen dungeon levels, ultimately entering Hell itself in order to face Diablo.