Psycho-Sleuth Wiki
Investigate a deadly selection where cognitive disorders distort perception, clues, and the rules of murder. Follow every chapter, suspect, choice, and ending on Steam.
Psycho Sleuth Resources
Focused guides for Psycho Sleuth walkthroughs, choices, clues, characters, and official game information
Latest Updates
Discover the newest guides, tips, and content
Psycho Sleuth Release Date Trailer: Everything You Need to Know
Discover the Psycho Sleuth release date trailer, featuring a gripping look at 13 players trapped in a deadly mystery game with contagious disorders.
Psycho Sleuth Chapter Order Guide: Everything You Need to Know About the Story Progression
Discover the official Psycho Sleuth chapter order, structure, and playtime details for this psychological mystery visual novel available on Steam.
The Ultimate Psycho Sleuth Detective Guide for Master Investigators
Master early game mechanics, solve complex puzzles, and navigate twisted mysteries with our ultimate Psycho Sleuth detective guide.
Psycho Sleuth Trailer Breakdown: Everything You Need to Know
Explore the Psycho Sleuth trailer details, cognitive distortion mechanics, and release information for PHOSEPO's mystery game.
Start Here
Your Psycho Sleuth Journey
Beginner Guide
Learn the investigation loop, dialogue checks, clue tracking, saving, and replay planning before chasing every ending.
Chapter Walkthrough
Follow a spoiler-aware route through five story chapters and reveal only the investigation help you need.
Puzzle & Clue Guide
Work through evidence chains and Debate Mode decisions with hint levels that keep major revelations controlled.
Choices & Endings
Record important dialogue choices, route flags, and ending requirements as you replay the mystery.
What is Psycho Sleuth?
Psycho Sleuth is a psychological mystery visual novel from PHOSEPO for Windows PC on Steam. You investigate distorted crime scenes, examine testimony, and separate cognitive-disorder misdirection from the clues that move each case forward.
The single-player story follows 13 main characters across five chapters. Debate Mode, route choices, and replay planning support a roughly 20-hour investigation with 40+ CG illustrations and 50+ original BGM tracks.
Developer
PHOSEPO
Platform
Windows PC / Steam
Genre
Psychological Mystery
Story Chapters
5
Story Length
About 20 hours
Psycho Sleuth Walkthrough
Follow a spoiler-aware route through all five Psycho Sleuth chapters. The outline focuses on investigation beats, dialogue checkpoints, and the moments where a case can stall without inventing chapter-specific solutions.
Chapters
ScopeFive-chapter story coverage
Spoilers
ControlledReveal major solutions only when needed
Chapter 1
Case setup and first investigation beats
Chapter 2
Continue the evidence trail and review testimony
Chapter 3
Track contradictions and route decisions
Chapter 4
Keep later revelations behind spoiler controls
Chapter 5
Follow the final case resolution
How to Use the Psycho Sleuth Walkthrough
Choose a spoiler level
Start with the chapter overview and open deeper solution notes only when you are stuck.
Check the current clue
Match the testimony, evidence, and Debate Mode prompt before moving to the next step.
Record route choices
Note important decisions so a later replay can target a different outcome.
The official Steam product page and Community hub remain the source links for current Psycho Sleuth release information.
Psycho Sleuth Choices and Endings
Record Psycho Sleuth dialogue choices, route flags, ending outcomes, and replay requirements with a spoiler-light checklist. The notes separate decision context from full outcome explanations.
Choices
GuideReview important dialogue decisions
Routes
ChecklistKeep route notes together for replay
Endings
Spoiler awareCompare outcomes after finishing a route
Preview the decision
Read the context around a dialogue choice before opening any outcome notes.
Record route flags
Keep a simple checklist of decisions that may shape a later replay.
Replay with purpose
Return to the relevant checkpoint when you want to compare another route.
Reveal ending notes
Open the full outcome explanation only after you are ready for spoilers.
Quick Tips
- Use spoiler-light notes before opening a complete route explanation.
- Keep saves around major dialogue decisions when testing another outcome.
- Mark each replay goal so the checklist stays focused.
- Read the ending context after finishing the current route.
Psycho Sleuth Puzzle and Clue Solutions
Use layered hint levels for Psycho Sleuth evidence interactions, clue chains, and deduction steps. The S/A/B labels indicate spoiler depth, not a ranking of puzzles or solutions.
Identify the evidence needed for each deduction
Reveal only the level of help you need
Scene context
Start here
Review the crime scene and testimony before opening a deeper hint.
Prompt check
Confirm the question
Identify what the current Debate Mode prompt is asking you to prove.
Clue chain
Connect the evidence
Match the required clue to the testimony or context that supports it.
Contradiction check
Test the claim
Compare the statement with the evidence before revealing the full solution.
Deduction steps
Reveal the route
Open the complete explanation when a case remains blocked.
Psycho Sleuth Beginner Guide
Start Psycho Sleuth with a spoiler-light overview of the investigation loop, dialogue examination, clue tracking, saving, and replay planning.
Loop
StartUnderstand how an investigation progresses
Clues
CoreKeep evidence and testimony organized
Saving
PracticalPlan saves before important decisions
Investigation Loop
CoreCase flow
- Inspect scenes
- Review testimony
Move from observation to deduction only after the current clue is clear.
Dialogue Review
CoreDecision context
- Check contradictions
- Record choices
Keep notes around important dialogue so a replay has a clear goal.
Clue Tracking
CoreEvidence
- Organize evidence
- Follow clue chains
Use the evidence trail to decide which hint level to open next.
Saving and Replay
OptionalRoute planning
- Keep checkpoint saves
- Compare outcomes
Plan a second route after finishing the current investigation.
Psycho Sleuth Characters
Browse the 13 main Psycho Sleuth characters by role, relationship, first appearance, and case relevance. Spoiler labels keep late-game context separate from introductory details.
Cast
RosterA roster of 13 main characters
Roles
ContextConnect suspects to the cases they shape
Spoilers
ControlledSeparate introductions from late reveals
Psycho Sleuth Achievements
Organize Psycho Sleuth story, investigation, exploration, and potentially missable completion milestones. Conditions stay unlisted until they are confirmed in the game or official Steam data.
Story
MilestoneMark progress through the main case
Investigation
MilestoneTrack clue and deduction progress
Exploration
MilestoneKeep optional discoveries visible
Story milestones
Mark chapter progress as you move through the main Psycho Sleuth case.
Investigation milestones
Track clue chains, testimony checks, and deduction progress without guessing hidden conditions.
Exploration milestones
Leave space for optional discoveries and review them after the main route.
Missable checks
Flag a milestone for review only when the official game or Steam achievement record confirms its requirement.
Psycho Sleuth Story Summary
Read spoiler-controlled Psycho Sleuth summaries for the premise, five chapters, central case, major revelations, and final resolution. Full explanations stay behind clear spoiler labels.
Premise
OverviewStart with a spoiler-free case setup
Chapters
StructureReview the story in five parts
Reveals
Spoiler awareOpen deeper explanation only on request
Premise
Spoiler-freeFocus: The central mystery and investigation setup
Reader action: Start here for the case context
Chapters 1–2
Light spoilersFocus: Early evidence, testimony, and route context
Reader action: Open after finishing the early chapters
Chapters 3–4
SpoilersFocus: Mid-story contradictions and major turns
Reader action: Use when you need a recap
Chapter 5 and resolution
Full spoilersFocus: Final explanations and ending context
Reader action: Read after completing the story
Psycho Sleuth PC Requirements and Settings
Keep official Psycho Sleuth Steam platform information, display options, input settings, and basic troubleshooting notes together. Technical values remain tied to the product page.
Platform
OfficialWindows PC through Steam
Display
SettingsReview supported display options
Input
SettingsCheck input and control preferences
Windows PC platform
Psycho Sleuth is listed for Windows PC through Steam; check the official product page for the current system requirements.
Display options
Use the settings notes to review available display choices and keep any unconfirmed value marked for later verification.
Input settings
Review the input and control preferences that matter for dialogue examination and investigation.
Basic troubleshooting
Start with the official Steam information when checking launch, display, or input issues.