Psycho-Sleuth investigation and card deduction

Outside Debate Mode, Psycho-Sleuth uses investigation screens and a card-placement board to rebuild what happened. You examine devices such as a Dial Switch on a sanctified cremator, then arrange comic-style cards into numbered slots until the summary line matches the reconstructed event.

Written and reviewed by Psycho Sleuth Editorial Team · Updated 5 November 2026

Psycho-Sleuth screenshot: Lyle examining a Dial Switch that controls a sanctified cremator. — Official Steam screenshot: Lyle examining a Dial Switch that controls a sanctified cremator.

Tool / screen	Example from official screenshots
Examine list	Dial Switch, Sanctified Cremator, Life Detector
Device text	Turn left to activate the furnace; turn right to shut it down
Card board	Slots I–V; place cards from a hand at the bottom
Summary line	Example: In the pitch-black darkness, Kizuna knocked Lyle out with a blunt weapon
Prompt	Place Cards

Psycho-Sleuth screenshot: card-placement board reconstructing how Kizuna knocked Lyle out. — Official Steam screenshot: card-placement board reconstructing how Kizuna knocked Lyle out.

Developer posts describe dozens of 3D backgrounds, 40 CGs and extensive Japanese voice lines supporting these scenes. Exact puzzle solutions are left to players; this page only names the systems shown in store media.