After Resident Evil, Mouthwashing continues the horror movie video game gold rush

The announcement confirms that the critically praised title Mouthwashing—launched on PC last year and only just arriving on consoles—will be turned into a movie. The project is being shepherded by Oscar‑nominated horror director Scott Derrickson, known for Sinister and the recent Marvel entry Doctor Strange in the Multiverse of Madness, while Karyn Kusama, fresh off Yellowjackets and the thriller Destroyer, will helm the picture. Screenwriters Matt Manfredi and Phil Hay, a duo with a track record in genre‑bending scripts, have been tapped to adapt the game’s non‑linear, atmospheric narrative about the stranded crew of the spaceship Tulpar. The film’s development follows the game’s win for Best Narrative at the 2024 Horror Game Awards, a accolade that underscored its storytelling ambition and gave studios a concrete proof point that the property can sustain a crossover audience beyond gamers.

The move sits squarely within a surge of video‑game‑to‑film projects that have shifted from cash‑grab gimmicks to more earnest adaptations. Zach Cregger’s Resident Evil reboot, released in September, demonstrated that a well‑budgeted horror game can translate into a box‑office success when paired with a director who respects the source material. Simultaneously, franchises like Five Nights at Freddy’s and the upcoming Legend of Zelda, BioShock, and Elden Ring movies illustrate studios’ appetite for leveraging established fan bases. By targeting a niche—space‑bound psychological horror—Mouthwashing differentiates itself from the more mainstream fantasy or survival‑horror titles, potentially carving a unique space in a crowded slate.

If the adaptation can preserve the game’s disorienting structure and visual flair, it could set a new benchmark for horror game movies, encouraging studios to green‑light more experimental titles. However, the project faces typical adaptation risks: condensing a branching narrative into a two‑hour screenplay, satisfying both gamers and horror aficionados, and avoiding the “video‑game‑movie” stigma that still haunts the genre. Watch for casting announcements, the involvement of Wrong Organ in creative oversight, and whether the film will adopt a linear or fragmented storytelling approach—choices that will heavily influence critical reception and box‑office performance.