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Sony is developing a feature-film adaptation of the horror game Mouthwashing, with Karyn Kusama set to direct from a script by Matt Manfredi and Phil Hay. Scott Derrickson will produce with C. Robert Cargill and Vince Cheng; a release date, cast and production schedule have not been announced.
Sony is developing a feature film based on Mouthwashing, the 2024 horror game, with Karyn Kusama directing and Scott Derrickson among the producers, according to reporting cited by Dread Central. The project brings together filmmakers known for horror and thriller work to adapt a story set aboard a stranded space freighter, though no cast, release date or production timetable has been announced.
Kusama will direct from a screenplay by Matt Manfredi and Phil Hay, who previously worked with her on the 2015 thriller The Invitation. Derrickson is attached as a producer, not as the director. He will produce alongside C. Robert Cargill and Vince Cheng under the Crooked Highway banner, according to the report. Sony is the studio developing the film.
The game, developed by Wrong Organ and published by Critical Reflex, follows five crew members aboard the Tulpar, a space freighter that crashes on an asteroid. Its supplies dwindle as isolation and paranoia intensify tensions among the crew. The adaptation’s plot details have not been reported beyond its connection to the game, so it is not yet clear how closely the film will follow that story or whether it will add new characters and events.
Dread Central reported the film development after an earlier report about an adaptation. The outlet also said the game first launched on PC in 2024 and had an “Overwhelmingly Positive” rating among English-language Steam reviewers at the time of its report. That is a platform rating, not a measure of sales or a broader audience survey.
A New Screen Life for Mouthwashing
The project gives a comparatively recent independent horror game a route to a larger audience through a studio-backed film. For players, the announcement signals that the game’s claustrophobic setting and crew-centered story are being developed for a different medium; for filmgoers, it puts Kusama in charge of a space-set horror adaptation with Derrickson and his producing partners attached.
The creative roles matter: Kusama is directing, while Derrickson is producing. That distinction avoids suggesting that the film is a Derrickson-directed project. Kusama’s previous work includes The Invitation and Jennifer’s Body, while Derrickson directed Sinister. The combination may attract attention from horror audiences, but the announcement alone does not establish the film’s tone, budget, or likely reception.
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From 2024 Game to Film
Mouthwashing was developed by Wrong Organ and published by Critical Reflex, and its PC release came in 2024. The game’s premise centers on a small crew isolated after a crash, with dwindling resources and growing mistrust. Those elements provide the reported basis for the adaptation, but details about the planned screenplay remain limited.
Dread Central’s report says the film follows an earlier announcement that an adaptation was in the works, and cites The Hollywood Reporter for the Sony and filmmaking attachments. The supplied reporting also mentions Sony’s recent success with Zach Cregger’s Resident Evil, but does not state that this success prompted the Mouthwashing project. No connection between the two films beyond Sony’s involvement is confirmed.
“Dwindling supplies, isolation, and mounting paranoia expose the fractures between the crew.”
— Dread Central, describing the game’s premise
Film Details Still Undisclosed
The reporting does not identify actors, a release date, a production start or a target platform beyond the film’s development for Sony. It is also unclear whether the screenplay will adapt the game scene by scene, expand its story, or change its characters and ending. No budget, filming location or distribution plan has been reported.
The available information confirms the named creative attachments as reported, but does not include direct statements from Sony, Kusama, Derrickson or the writers about their plans for the adaptation. The game’s reported Steam rating also reflects a particular group of English-language reviewers and should not be treated as evidence of a specific commercial performance.
Awaiting Cast and Production News
The next public developments to watch for are announcements about casting, production dates and the film’s release plan. Sony or the filmmakers may also provide details on how the screenplay will translate the game’s confined setting and psychological horror to the screen. Until those details are released, the confirmed picture is limited to the studio, director, writers and producing team named in the reports.
Key Questions
Who is directing the Mouthwashing film?
Karyn Kusama is set to direct. Scott Derrickson is attached as a producer, not as the director.
Who is writing the adaptation?
The screenplay is by Matt Manfredi and Phil Hay, who previously worked with Kusama on The Invitation.
What is Mouthwashing about?
The game follows five crew members stranded aboard the space freighter Tulpar after it crashes on an asteroid. Supplies run low, while isolation and paranoia strain the group.
When will the Mouthwashing film be released?
No release date has been announced. The available report also does not give a production start date or name any cast members.
Source: dreadcentral.com
