Kindaichi Mystery Series: The Honjin Murders

Casual· Interactive Fiction· Mystery· Visual Novel

Released Apr 2025

Famous detective Kosuke Kindaichi's first case, the Honjin Murder Mystery. Honjin descendant Kenzo Ichiyanagi and his new wife Katsuko Kubo lay dead in a bed of blood on the night of their wedding. Kosuke Kindaichi searches for the truth about this locked room murder mystery. However...

63% positive · 185 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 12 Oct 2026 $12.99

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Evaluation

Kindaichi Mystery Series: The Honjin Murders launched on April 23–24, 2025 as a complete mystery puzzle novel game — a self-contained adaptation of a classic locked-room murder mystery. The store description describes a single, complete narrative with a defined story and conclusion, with no mention of additional chapters, DLC, or future content. Since launch, the developer has been actively supporting the game with quality-of-life patches: Ver.1.0.3 (May 15, 2025) added text playback speed adjustment and auto-play for cutscenes, and Ver.1.0.4 (June 25, 2025) added a Tips help feature and controller sound effects. A free demo was also released alongside the June 2025 update. These are all polish and accessibility improvements, not new story content. There are no unreleased DLC listings, no announced future content, and no developer statements pointing to additional chapters or expansions. The game shipped as a finished narrative product, and all post-launch activity has been maintenance and player-experience improvements. No further content development appears to be planned.

Evidence

Game launched on April 24, 2025 with a 15% launch discount. No mention of post-launch content plans.

news post · Apr 23, 2025 source content shipped

high

Store description presents a single, self-contained locked-room murder mystery narrative with a defined beginning and conclusion. No DLC, chapters, or future content are mentioned.

description source ambiguous

medium

Media

Details

Developer

coly Inc.

Publisher

coly Inc.

Achievements

Platform

Windows, macOS

Controller

partial support

Steam Deck

Verified

Players

Single-player

Casual Interactive Fiction Mystery Visual Novel Puzzle Detective Story Rich Investigation Adventure Choose Your Own Adventure 2D Text-Based Anime Immersive Sim Gore

About this game

A murder brought about by the twisted oppression of the Showa era...

A mystery puzzle novel game full of the emotion, fear, and macabre from the Showa era has arrived in the modern Reiwa era.

The Koto Murder Case... A horrifying locked room murder that beset the Ichiyanagi family.

Together with a detective novelist from Okayama, your goal is to piece together testimonies collected from villagers and those involved in the incident and uncover the truth.

Then, you must complete the detective novel based on this incident.

What kind of ending awaits you?

It begins:

On November 26, 1937 at approximately 4:00 AM, honjin descendant Kenzo Ichiyanagi and his new wife Katsuko Kubo lay dead in a bed of blood on the night of their wedding.

Aside from the lifeless married couple, not a soul lurked inside the annexe on the night of the incident.

T'was a "locked room murder" with the fallen snow covering any traces of an escaped killer.

After hearing of the incident, detective Kosuke Kindaichi arrives at the scene, collecting testimonies about the incident as he searches for the truth about this locked room murder mystery. However...

Gameplay:

A unique experience with the thrill of piecing together clues and testimonies like a puzzle while also enjoying the immersive feeling of learning the truth as it unfolds.

・The visuals and sounds of Japanese horror heighten the excitement of this mystery drama.

・As you lead the story to its conclusion, you will discover the shocking truth behind the incident.