Psycho-Sleuth
Demo available
About the game
Psycho-Sleuth is a mystery game where cognitive disorders distort the rules of murder. Enter the minds of 13 afflicted players trapped in a deadly game, each with an abnormal mental condition. These disorders are contagious, but the killer hides amongst twisted logic.
Original Steam description

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"Kill without being caught"
Every murder is reshaped through the lens of bizarre mental distortions. Logic is twisted, the truth is warped, but only your reasoning can restore order.
A Twisted Trial of God
A mysterious cult named “Li” has seized control of the world.
Their cruel trial is simple: commit murder without being exposed, and you shall ascend to godhood.
13 individuals known as "Afflicted Ones" are summoned but burdened with rare cognitive disorders that spread their warped perceptions to others, creating murder scenes that defy reason:
OCD forces absolute truth where no one can lie
Spatial neglect erases evidence from the left side of reality
Prosopagnosia blurs every face into anonymity
Can you untangle these cognitive illusions and expose the true mastermind?

Quick, Intense Debate Battles
Enter Debate Mode, where you'll rapidly judge every statement: Will you accept their words, or strike back with the right clue?
Every battle tests logic, instincts, and time management.
Murders Twisted by Cognitive Disorders
Crime scenes are not what they seem.
Witness bodies without faces, missing evidence, and spaces erased by perception.
That corpse with severed limbs—was it murder?
Or did they fall victim to their own "Alien Limb Syndrome"?
13 Cognitively Afflicted Characters
Each character bears a distinct disorder and a unique "Afflicted Power."
Understanding their minds is key to uncovering their crimes and motives.
Immersive Live2D Animations & Stunning CG
Live2D portraits breathe every emotional decision and nuance to life,
while high-quality CG sets the stage for tense interrogations and shocking punishments.

When the culprit is revealed, they will face a punishment shaped by their own cognitive disorder.
In a world consumed by distorted perceptions, can you decipher reality’s truth?






Demo and release information
A Steam demo was found at the latest check. Confirm it is still available in your region on Steam before downloading.
Steam demo, playtest and Early Access: what is the difference?
Information & artwork: Steam · Last checked UTC