Honkaku mystery · Adventure · Visual novel

Psycho-Sleuth: Release Details & Guides

Psycho-Sleuth is a honkaku mystery adventure from Taiwanese studio PHOSEPO, released on Steam on 4 November 2026. Thirteen people with rare cognitive disorders are pulled into a death game run by a cult called Li: murder without being caught and you ascend, while their conditions spread and warp both the crime scenes and the testimony. Your job is to name the killer through logic that has been bent on purpose.

  • Mystery
  • Visual novel
  • Traditional Chinese
  • Japanese voice
  • Multiple endings
  • 2026

Launch price

¥58.5¥6510% off at launch

US $17.99$19.99

Psycho-Sleuth screenshot: three anime-style characters stand in a sci-fi hall, with a dialogue box reading 'Oh, it's Lena.'Psycho-Sleuth official screenshot: an anime-style dialogue scenePsycho-Sleuth official screenshot: a honkaku investigation scene

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About this game

Honkaku mystery · Adventure · Visual novel

Psycho-Sleuth takes the old honkaku rule that scene, testimony and motive must lock together, then adds one twist: some people's senses lie. Thirteen Afflicted Ones carry conditions such as compulsive truth-telling, left-side spatial neglect and face blindness, and those conditions spread. Evidence can vanish from the left of a room, a witness cannot stop telling the truth, and faces blur into the same one. You reconstruct what happened from clues that were tampered with before you arrived.

  1. 01

    Kill without being caught

    The store page states the rule plainly: in the death game run by the cult Li, a killer who is never identified ascends to godhood.

  2. 02

    Thirteen Afflicted, thirteen distortions

    The store description names obsessive-compulsive truth-telling, left-side spatial neglect that erases evidence, and prosopagnosia that blurs every face.

  3. 03

    The disorders are contagious

    The store copy stresses that these conditions spread, carrying the warped perception to other people so that scenes and testimony both drift from the truth.

  4. 04

    A honkaku spine

    It is framed as a honkaku mystery: evidence, motive and method have to line up, with the supernatural kept to a small share.

  5. 05

    Traditional Chinese and full Japanese audio

    Steam lists Traditional Chinese, Simplified Chinese, English, Japanese and Korean, with Japanese marked as full voice-over.

  6. 06

    First-week reception

    Steam shows a 91% positive rating, with more than 470 reviews in the first five days (9 November 2026).

Start with these two

Get the release facts straight, then learn the daily loop.

2 guides

Where are you stuck?

Pick the problem closest to yours. Unwritten guides are marked as coming soon.

How the mystery plays

Read the scene, weigh the testimony, then unpick the logic that was bent on purpose.

  • 01Clues

    Scene reading

  • 02Debate

    Testimony

  • 03Core

    Disorder logic

  • 04Branches

    Multiple endings

What shipped at launch

Only what the Steam store description and public store data state.

  • 1.0

    Thirteen Afflicted Ones

    The store copy sets up thirteen people with rare cognitive disorders, each one a different hole in the reasoning.

  • 1.0

    Contagious distortion

    The conditions spread to other people, bending testimony and scene together. That is the game's premise.

  • 1.0

    The cult Li's death game

    The rule is explicit: a murder that is never solved elevates the killer to godhood.

  • 1.0

    A honkaku spine

    Evidence, motive and method must line up, with the supernatural kept to a small share.

  • 1.0

    Traditional Chinese and Japanese audio

    Steam lists Traditional Chinese interface and subtitles, with Japanese as full voice-over.

Screenshots

Scroll for more, click to enlarge

Guide categories

FAQ

What is Psycho-Sleuth?

A honkaku mystery adventure. Thirteen Afflicted Ones with contagious cognitive disorders are trapped in a death game run by the cult Li, and you name the killer through clues that were bent on purpose.

When did it launch and what does it cost?

4 November 2026 on Steam, at $19.99 or ¥65, with a 10% launch discount in the first two weeks.

Does it support Traditional Chinese?

Yes, in the interface and subtitles. Japanese is the full voice-over language.

How is it received?

Steam shows a 91% positive rating, with more than 470 reviews in the first five days.

Is there voice acting?

Yes, full Japanese voice-over; other languages are interface and subtitles only.

Are the PC requirements high?

No. The minimum is an Intel Core i3, 8 GB RAM, a GeForce GT 1030 and 10 GB of storage.

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Psycho-Sleuth

¥58.5¥65