DIABLO CLASSIC, ON A MAD JOURNEY TO KILL THE BUTCHER AND THE SKELETON KING

The expansion pack made for Diablo is Diablo: Hellfire, released in 1997. It was produced by Synergistic Software and published by Sierra Entertainment rather than an in-house Blizzard North development team. The multiplayer feature of the expansion pack was disabled with version 1.01. The added content included two additional dungeon segments located within a new side storyline, several unique items and magical item properties, spells, and a fourth class, the Monk