Diablo: Hellfire

Hellfire
DeveloperSynergistic Software
PublisherSierra On-Line
Designers
  • Kirt Lemons
  • Donald Tsang
  • Peter Watje
  • Jim Edwards
  • Mike McMillen
ProgrammerDonald Tsang
ArtistKirt Lemons
WriterEve Forward
ComposerMatt Uelmen
SeriesDiablo
PlatformWindows
Release
  • NA: November 25, 1997
  • EU: 1998
GenresAction role-playing, hack and slash
ModesSingle-player, multiplayer

Hellfire, often called Diablo: Hellfire, is an expansion pack for the video game Diablo, developed by Synergistic Software, a Sierra division, and published by Sierra On-Line in 1997. Despite the objections of Blizzard Entertainment, the Hellfire expansion was produced, permitted by Davidson & Associates, their parent company at the time. Blizzard North, who was developing the sequel Diablo II, thus imposed numerous restrictions upon Synergistic Software's development of Hellfire.

Hellfire was re-released alongside Diablo in 1998 in a bundle called Diablo + Hellfire. Hellfire was released digitally by Blizzard Entertainment on June 5, 2019 as a free add-on with every purchase of the original Diablo on GOG.com.