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Dichotomy Illusion: The Coser Disassembly Incident

Dichotomy Illusion: The Coser Disassembly Incident

"Dichotomy Illusion" is a Shin Honkaku mystery visual novel that combines real-world entertainment elements with physical locations, utilizing ACGN (Anime, Comics, Games, Novels) subculture knowledge to solve criminal cases and uncover the truth.

Released Jun 7, 2025 Developer akidou Publisher 糕薯科技 Platforms Windows SimulationRPGInteractive FictionWord GameVisual Novel
View on Steam ↗ Free (US · as of 2026-09-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.

86.0%positive428 reviews
Recommended · 0 found this helpful

“Dichotomy Illusion: The Coser Disassembly Incident takes the framework of a murder mystery and pushes it deep into the world of anime, gaming, cosplay, underground idols, merchandise collecting, and internet subcultures. Developed by akidou and published by 糕薯科技, it is primarily…”

— a player, Steam review · 14 hrs played
Recommended · 0 found this helpful

“Dichotomy Illusion: The Coser Disassembly Incident is one of the strangest mystery visual novels I have played, and I mean that in a good way. The story revolves around a brutal murder involving an underground idol and cosplayer, followed by another disturbing case involving…”

— a player, Steam review · 6 hrs played
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Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

21achievements
37.5%median completion
20.0%rarest: More Renegade Than the Culprit
95.7% of players 90.9% of players 73.3% of players 69.7% of players 66.0% of players 53.4% of players 47.0% of players 45.3% of players 43.2% of players 37.6% of players 37.5% of players 37.4% of players 37.2% of players 37.1% of players 34.0% of players 34.0% of players 34.0% of players 32.9% of players 32.7% of players 21.4% of players 20.0% of players 95.7% 0% most earned rarest
Almost everyone has
95.7%Contract Signing — Hidden achievement
90.9%Severance — Hidden achievement
73.3%Plain talk starts now... — Hidden achievement
Rarest badges of honor
20.0%More Renegade Than the Culprit — Hidden achievement
21.4%DON'T QUIT!!! — Hidden achievement
32.7%How Kind of You — Hidden achievement

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

GenresIndie, RPG, Simulation, Free To Play
Player tagsSimulation · RPG · Interactive Fiction · Word Game · Visual Novel · 2D Platformer · 2D · Hand-drawn · Free to Play · Indie · Stylized · Story Rich (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Family Sharing
LanguagesSimplified Chinese
Achievements21
Minimum system requirements (PC)

Minimum: OS *: Windows® 7/8/8.1/10/11 Processor: x64 or x86 Memory: 4 GB RAM Graphics: DirectX 9/OpenGL 4.1 capable GPU Storage: 2 GB available space