Who composed the soundtrack for the original Diablo game?

Matt Uelmen composed the soundtrack for the original Diablo game.

Uelmen worked at Blizzard North and became closely associated with the sound of the early Diablo series. His music helped define the game's bleak, gothic atmosphere, using brooding melodies and distinctive instrumental textures rather than a conventional heroic fantasy style.

The most famous piece connected with Diablo is the acoustic guitar theme heard in Tristram. That melody became one of the franchise's signature musical ideas and was later referenced in other Diablo releases. Uelmen also composed music for Diablo II and its expansion, Lord of Destruction.

A common mix-up is confusing the Diablo composer with later Blizzard composers such as Russell Brower. Brower worked extensively on later Blizzard projects, but Uelmen is the composer most specifically associated with the original Diablo soundtrack.