
Screenshots

Watch trailer on Steam ↗G-MODEアーカイブス+ 探偵・癸生川凌介事件譚 Vol.1「仮面幻想殺人事件」
Content notice: This game may contain bloodshed, suicide, violence, and other content not suitable for all ages in the course of the story.
Positive — 93% positive (14 reviews)
Last updated 27 Sept 2026
Online RPG that dies when played. Uncover the secret behind the game and its truth.
£4.29
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Adventure · 2023 · More under £5 games
Step into the shoes of Detective Kyoushi Kurokage and solve the enigmatic "Masked Fantasy Murder Case" in G-MODE’s 2023 adventure, where each decision may lead to your demise. Unveil the hidden truths behind a game that ends with every move you make.
About this game
"The Detective Kibukawa Ryosuke Case Tale" Series - Part 1!
Play and Die Online RPG.
Uncover the secret hidden in the game, and its truth.
【Game System】
This is a mystery adventure game in which the player solves a series of difficult cases that occur in a fictional town called Marihama City.
The player controls the main character in the scenario and solves the mystery by selecting commands in the conversation and deduction parts, and by gathering information and evidence that will serve as clues to solve the case.
The story progresses by selecting commands, so even game beginners can easily play the game.
【Story】
This case begins with an investigation into a rumor of an online game that will kill players if play it.
At first it seems like a simple investigation, but one problem after another arises, and the actual case...
Please enjoy the many mysteries woven by complex human characters.
【Character】

◆Ryosuke Kibukawa (癸生川凌介)
The director of the Kibukawa Detective Agency and a detective himself.
However, he is quite an eccentric character, often causing trouble and confusion for those around him, though he doesn't seem to care about it at all.
It’s completely unclear what he's thinking, but he has led the resolution of numerous difficult cases up to now.

◆Izuna Sagishima (白鷺洲 伊綱)
A detective assistant at the Kibukawa Detective Agency.
Though she is an assistant, she is exceptionally capable, and could likely solve most cases on her own.
However, like her superior, she is unaware of her own quirks. She has a rather eccentric personality, sometimes clumsy, but also sharp enough to make one wonder if it's all part of a calculated act.

◆Masao Ikurumi (生王 正生)
A game scenario writer.
Recently, he has mostly been working on mobile app projects, including turning cases involving the Kibukawa Detective Agency into adventure games for public release.
Because of this "favor," he can never quite stand up to Kibukawa or Izuna, and is always flattered by them, which leads to him being made to work for free.

System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7 SP1+
- Processor: 2 Ghz Dual Core
- Memory: 1 GB RAM
- Graphics: Graphics card with DX10 (shader model 4.0) capabilities
- DirectX: Version 10
- Storage: 500 MB available space






