Key art for Mouthwashing

Game review

Mouthwashing

8 / 10

Developer
Wrong Organ
Publisher
Critical Reflex
Released
26 September 2024
Platforms
Windows
Genre
Psychological horror narrative adventure
Monetisation
One-time purchase, no DLC or microtransactions
Players
Single-player only

The short version

Mouthwashing is a short, PSX-styled psychological horror narrative that tells the unraveling of a stranded cargo ship's crew out of chronological order, and this review's overwhelming sample confirms it lands as a genuinely striking piece of writing and atmosphere for the vast majority of players. A smaller but consistent counter-current argues the back half trades narrative momentum for tedious, thin interactive segments, and this review treats that critique as legitimate rather than dismissing it as contrarianism.

Biggest strengths

  • The writing, character work, and non-linear structure earn overwhelming, specific praise across this review's sample, with reviewers repeatedly describing the game as something that "sticks with you" long after finishing it
  • The PSX-inspired art direction and sound design are consistently singled out as genuinely unsettling and effective, with several reviewers specifically calling out the sound design as difficult to sit through in the best possible way
  • This review's own achievement-data check corroborates the short, tightly focused runtime reviewers describe: the story-completion achievement sits at 74.9%, an unusually high completion rate that supports reviewer claims the game respects players' time rather than padding for the sake of length

Biggest weaknesses

  • A consistent minority complaint describes the game's second half as shifting from strong narrative momentum into repetitive corridors and simple interactive sequences that several reviewers found tedious rather than tense
  • Multiple reviewers who otherwise respected the game's craft describe its central twist as predictable, arguing the story's themes, once the surrealist framing is set aside, are more straightforward than the discourse around the game suggests
  • Several reviewers state plainly they would recommend watching a playthrough rather than playing the game directly, arguing the minimal interactivity in its gameplay segments adds tedium without adding tension

Who it's for: Fans of short, heavily narrative-driven horror in the vein of a psychological character study rather than a traditional scare-driven game; not a fit for players who want substantial, varied gameplay systems to match a story-first horror experience.

Our recommendation: Strongly recommended for horror fans specifically drawn to character-study narratives with dark, difficult themes, at a budget price point matched to its roughly two-to-three-hour runtime; temper expectations if simple interactive sequences rather than deep gameplay systems are a dealbreaker.

8 / 10

Mouthwashing tells the story of five crew members stranded aboard the crashed cargo ship Tulpar, unraveling out of chronological order as denial, guilt, and complicity among the survivors come apart. This review's overwhelming sample confirms it as a genuine standout piece of writing and atmosphere within the horror genre, alongside a smaller, consistent counter-current of reviewers who found its gameplay segments a real drag on an otherwise excellent story.

Writing and atmosphere that overwhelmingly land

The sheer volume and specificity of praise in this review's sample is striking. "This game has stuck with me, my thoughts keep wandering back to it, and any game that does that is worth recommending," one reviewer writes. Another describes a visceral reaction to its sound design: "can we take a second for the [redacted] sound design??? at several points i had to fight to urge to pull my headphones off. it was disgusting, i loved it, 10/10." A reviewer who compared it to prestige science fiction storytelling puts it directly: "this feels like a more graphic version of a Star Trek: TNG episode... this is more Kubrickian psychological horror that is closer to 'The Shining.'" One reviewer frames its unflinching subject matter as a strength rather than shock value: "Mouthwashing is disgusting, distressing, and infuriating in all the right ways."

A consistent minority complaint about the back half

Set against that praise, a specific, repeated complaint describes the game's structure as front-loaded, with the story losing momentum once the interactive "gameplay" segments take over. "That was until halfway it turns into a walking simulator filled with long repetitive corridors and I would be forcibly taken away from the immersive experience to do the surrealism segments," one reviewer writes. A separate reviewer makes nearly the same structural criticism: "The great story is interrupted with bits of gameplay often feeling straight out of mascot horror, with one segment in the middle of the game being especially infuriating." Another reviewer states it as a simple recommendation: "You could 100% watch a playthrough of this game and get the same level of enjoyment as if you'd played it yourself... what game-y parts there are, are very tedious and annoying to get through."

Is the twist as deep as its reputation suggests?

A second theme running through the critical minority questions whether the game's celebrated ambiguity holds up on reflection. "The storytelling leans heavily on recycled symbolism that feels more like decorative noise than insightful commentary," one reviewer argues. Another, describing themselves as arriving a year after the initial wave of acclaim, writes: "in the end it was pretty easy to follow and rather shallow as a whole. I wasn't all that confused or moved by the end of it." This review treats these as legitimate, considered critiques from engaged players rather than dismissing them as contrarian pushback against a consensus darling — the specificity and consistency of the complaint across multiple independent reviews earns it a fair hearing.

Achievement data confirms a short, tightly focused runtime

This review's own check of Steam's achievement data supports the reviewer consensus that the game is short by design rather than padded. The story-completion achievement sits at 74.9%, an unusually high completion rate for any game — most players who start Mouthwashing finish it, consistent with a roughly two-to-three-hour runtime that reviewers on both sides of the discourse describe consistently. One critical reviewer frames this length as a cynical choice: "The game is painfully short—just over two hours, which feels intentional to prevent refunds." This review cannot verify developer intent behind the runtime, but notes the completion-rate data is at least consistent with a short, front-loaded experience rather than a padded one.

A note on sourcing

This review's negative sample included one reviewer alleging that official Mouthwashing merchandise trivializes the game's darkest subject matter. This review could not independently verify that specific claim against the developer's or publisher's actual merchandise offerings, and it has been excluded from this review's sourcing accordingly rather than repeated as an established fact.

A story that rewards discussion, for better or worse

Several reviewers specifically credit the game's non-linear structure with generating an unusually active community discourse, with players comparing notes, theories, and interpretations well after finishing. One reviewer explicitly frames this as part of the appeal: they discovered the game through "another by the same dev: How Fish is Made," suggesting a returning audience for the developer's specific brand of unsettling, human-scale horror rather than a one-off viral moment. That level of engaged discussion cuts both ways, however: it's also what fuels the critical minority's complaint that the surrounding hype oversells a story whose central mechanics, once explained, are less complex than the discourse implies. This review treats that tension as a genuine, unresolved feature of the game's reception rather than something a single verdict can settle.

What the reception record shows

Steam's own partner-events feed confirms Mouthwashing became a genuine cultural moment well beyond a niche horror audience: over 300,000 copies sold, an official soundtrack release, and multiple licensed merchandise partnerships including collectible figures and plushies, continuing into a first-anniversary Q&A series roughly two years after launch. That scale of sustained attention is a meaningful data point in its own right, distinct from and corroborating the review sample's overwhelmingly positive reception.

Final verdict

Mouthwashing earns its reputation as one of the standout horror narratives of its year, and this review's overwhelming sample confirms genuinely exceptional writing, atmosphere, and sound design that sticks with players well after the credits. A smaller but consistent counter-current makes a fair, specific case that its interactive back half doesn't match the strength of its story, and that its themes are more legible than the surrounding discourse suggests — both worth weighing for players deciding whether to experience it firsthand or via a playthrough.

Pros and cons

Pros

  • The writing, character work, and non-linear structure earn overwhelming, specific praise across this review's sample, with reviewers repeatedly describing the game as something that "sticks with you" long after finishing it
  • The PSX-inspired art direction and sound design are consistently singled out as genuinely unsettling and effective, with several reviewers specifically calling out the sound design as difficult to sit through in the best possible way
  • This review's own achievement-data check corroborates the short, tightly focused runtime reviewers describe: the story-completion achievement sits at 74.9%, an unusually high completion rate that supports reviewer claims the game respects players' time rather than padding for the sake of length
  • Steam's own partner-events feed confirms a substantial post-launch cultural footprint, including over 300,000 copies sold, an official soundtrack release, and multiple licensed merchandise partnerships, indicating the story resonated well beyond a niche audience
  • The game tackles genuinely difficult, uncomfortable subject matter without flinching, and multiple reviewers specifically credit it with handling denial, complicity, and guilt among its characters in a way that feels earned rather than exploitative

Cons

  • A consistent minority complaint describes the game's second half as shifting from strong narrative momentum into repetitive corridors and simple interactive sequences that several reviewers found tedious rather than tense
  • Multiple reviewers who otherwise respected the game's craft describe its central twist as predictable, arguing the story's themes, once the surrealist framing is set aside, are more straightforward than the discourse around the game suggests
  • Several reviewers state plainly they would recommend watching a playthrough rather than playing the game directly, arguing the minimal interactivity in its gameplay segments adds tedium without adding tension
  • This review's sample includes a specific complaint that the roughly two-to-three-hour runtime, priced to sit just past Steam's two-hour refund window, feels like a deliberate design choice rather than a natural length for the story being told
  • The game's unflinching approach to difficult subject matter, while widely praised, will not suit every player, and this review states plainly that its official content descriptor covers extreme violence, gore, and mutilation

Category scores

Category scores are the reviewer's read on each area. They inform the overall score but do not average into it — the number at the top of the page is a judgement, not a calculation.

  • Gameplay 5.5 / 10
  • Visuals 8 / 10
  • Progression 6 / 10
  • Value 6.5 / 10
  • Originality 7.5 / 10
  • Story 9 / 10