謎解き×犯人当て×推理ミステリー ラストサイン探偵 殺人事件

Contains adsIn-app purchases
Content rating
Teen
1K+
Downloads
Content rating
Teen
Mild Violence
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About this game

A full-fledged mystery investigation game combining dying messages, culprit identification, and suspect interrogation.

"Last Sign Detective" is a mystery game specializing in identifying the culprit by narrowing down suspects based on dying messages. It's a full-fledged mystery adventure where you solve murder and cold cases by logically deductioning based on evidence, suspect testimonies, and clues. It's perfect for those who enjoy culprit-finding games and those who want to enjoy investigation games and puzzle-solving with an escape room feel.

■ Game Features

▼ Authentic Deduction by Deciphering Dying Messages
Analyze the dying messages that hold the key to the case and logically narrow down which suspect is the real culprit. A tense culprit-finding experience that tests your reasoning skills and intuition.

▼ Solve the Case by Gathering Clues and Evidence
Examine the evidence at the crime scene, the actions and testimonies of suspects, and find contradictions and inconsistencies to get closer to the truth. A mystery adventure where you can experience the satisfaction of both finding the culprit and solving the case.


▼ Immersive Story-Based Mystery
Each stage is a story-driven suspense mystery. Experience a detective novel where you unravel the mysteries of murder and unsolved cases by identifying the culprit.

▼ Beginner-Friendly Design
With a hint function, even those new to puzzle-solving and detective games can enjoy it. Even if you're not good at identifying the culprit, you can complete the game with a full-fledged investigation experience.

▼ All Stages Playable
Enjoy all the puzzle-solving and detective stages. A perfect detective app for killing time during short breaks.


■ How to Play

1. Investigate evidence and dying messages at the crime scene.
2. Check suspects' testimonies and actions to find inconsistencies.
3. Combine clues to deduce the culprit.
4. Identify the real culprit and solve the murder/unsolved case.

■ Recommended for those who:

・Enjoy whodunit/culprit-finding games.

・Enjoy deduction through dying messages and suspect interrogation.

・Enjoy suspense mysteries involving murder and unsolved cases.

・Want to enjoy investigation games and escape room-style puzzle solving.

・Want a deduction experience solving cases from evidence and testimonies.

・Are looking for a full-fledged mystery adventure/mystery novel.

・Are looking for a mystery game/mystery app that you can play at your leisure.

"Last Sign Detective" is a mystery app that condenses the fun of puzzle-solving, whodunit, and deduction games. Use your deductive skills to uncover the real culprit and unravel the truth behind all the cases.
Identify the real culprit from the dying message! Gather suspect testimonies and clues to investigate the case. Experience solving cold cases like in a suspense drama in this detective-finding mystery game.
Updated on
Aug 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

■ 事件を20話追加しました(全180話 → 全200話)

醤油蔵に浮いた一本の紙縒り、船霊様の納め穴、鵜飼の鮎に残る針の傷、
サーカスの鏡に描かれた道化の顔、祭りの奉納帳のただ一行——
職人と現場の知恵を仕掛けにした、新しい20話です。

第200話「弐百と二百」は、二百話目にしか作れない集大成。
帳面の中の「二百」が、すべてを語ります。

■ 細かな改善と修正を行いました