Iron Lung

Iron Lung is a 2025 science-fiction horror film written, directed, and produced by Mark Fischbach, adapted from David Szymanski’s 2022 video game.

Iron Lung (video game): Iron Lung is a 2022 first-person horror game by David Szymanski, set aboard a submarine exploring an ocean of blood. The film adapts this game’s claustrophobic setting and premise.
Claustrophobia: Claustrophobia is intense fear or distress associated with enclosed or confined spaces. The submarine’s cramped interior makes confinement a persistent source of dread.
YouTube: YouTube is an online video-sharing platform owned by Google. Fischbach built his public career and audience on this platform.
Dusk: Dusk is a 2018 first-person shooter developed by David Szymanski and published by New Blood Interactive. Its very different genre shows the range of Szymanski’s game design.
David Szymanski: David Szymanski is an independent video game developer known for Iron Lung and Dusk. He created the game that supplied the film’s source material.
Found footage: Found footage is a filmmaking style that presents fictional events as recordings made by characters. The film’s recorded images connect its horror to mediated, limited viewpoints.
Independent film: Independent film is filmmaking produced outside the major studio system or without its primary financing. The project’s creator-led production invites comparison with independent filmmaking.
Five Nights at Freddy's: Five Nights at Freddy's is a horror franchise that began as a 2014 video game by Scott Cawthon. Its film adaptation offers another route from game-based horror to cinema.
Mark Fischbach: Mark Fischbach, known online as Markiplier, is an American YouTuber, actor, and filmmaker. He wrote, directed, produced, and stars in the film.
Sound design: Sound design is the creation and arrangement of audio elements for a film or other production. Mechanical noises and acoustic uncertainty help make the submarine feel threatening.

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