Iron Lung Film Composer Andrew Hulshult On Working with Markiplier, Differences Between Games and Film OSTs

February 22, 2026 - 13:10

Composer Andrew Hulshult, renowned for his pulse-pounding work on video game titles like DOOM Eternal and Quake Champions, recently ventured into film scoring for the acclaimed horror movie Iron Lung. In a new interview, he detailed the unique challenges and rewards of translating his audio expertise to the cinematic realm.

Hulshult highlighted a fundamental difference between mediums. In games, music must be dynamic, reacting to a player's unpredictable actions. For film, the score serves a locked picture, allowing for precise, narrative-driven composition. The claustrophobic setting of Iron Lung demanded a score that amplified the sheer terror of its submerged setting. Hulshult crafted a soundscape of deep, unsettling drones and metallic textures to embody the crushing pressure of the ocean depths.

A key collaboration was with the film’s director and star, Mark Fischbach, widely known as Markiplier. Hulshult praised the process, noting Fischbach’s clear vision and collaborative spirit. Their partnership ensured the music perfectly underscored the film’s tense, atmospheric dread. This project marks a significant expansion for Hulshult, proving his adeptness at building suspense whether for interactive gameplay or a fixed, terrifying narrative. The Iron Lung soundtrack stands as a testament to his versatility in the world of horror composition.