謎解き推測ゲーム×推理ホラー脱出-ゲームマスターの密室 推理

Contains ads
10K+
Downloads
Content rating
Teen
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About this game

◆ Puzzle solving, deduction, and horror! The ultimate locked-room mystery escape game

"Game Master's Locked Room" is a full-scale, brain-teasing mystery game that combines puzzle solving, deduction, escape, and horror to challenge your brain like a guessing game.
Players take on the role of detectives, exploring locked rooms and uncovering the hidden tricks to uncover the truth.
Enjoy a thrilling mystery-solving experience filled with the tension of suspense and horror! The game's lightweight operation makes for stress-free play.



◆ Game Features
• A fusion of puzzle solving, deduction, escape, horror, and locked room
• A battle of wits as you gather clues and deduce the truth behind the crime
• The thrill and sense of accomplishment of uncovering the hidden tricks in the locked room
• A suspenseful story and terrifying effects enhance the immersion
• Hints are included for beginners
• A smooth, lightweight gameplay



◆ Features
• A full-fledged mystery that puts you in the role of a detective
• Explore locked rooms and discover clues
• Unlock traps with puzzle-solving techniques to escape
• Use evidence to deduce the culprit and uncover the truth
• Free to play until the end



◆ Series Introduction

This game is part of the popular locked room series.
Each game offers a unique setting and tricks for thrills and horror!
• Keyless Locked Room: A classic mystery game that combines puzzle solving, deduction, and escape.
• Cursed Locked Room: A horror-themed escape game with a strikingly terrifying effect.
• Abandoned Hospital Locked Room: A puzzle-themed escape game where fear and suspense intersect.

The entire series is the definitive combination of puzzle solving, deduction, locked-room escape, horror, and mystery.
It tests your deductive skills to uncover the truth, your inspiration to break through the locked room, and your courage to face fear!



◆ Recommended for:
• Fans of puzzle solving, deduction, and escape games
• Fans of horror and locked-room mysteries
• Looking for a free, authentic mystery app
• Want to enjoy thrilling suspense and brain-teasing battles
• Beginners at puzzle solving, guessing games, and mystery games
• Looking for a lightweight app



◆ Try it now!

"Game Master's Locked Room" is a horror-themed escape game where fear intersects with puzzle solving.
Your powers of deduction and observation will determine the truth of the case. Download now and solve the locked room mystery!
Updated on
Dec 10, 2025

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
Data is encrypted in transit
Data can’t be deleted

What’s new

鍵のない密室、ゲームマスターの密室等の密室シリーズのスピンオフ作品「ひとり人狼」をリリースしました。ひとりで遊べる本格人狼ノベルゲームです。
密室シリーズのキャラが登場する人狼ゲームなので、是非遊んでみてください。
https://app-seed.com/jinrou/

ミステリー脱出ゲーム「ゲームマスターの密室」を遊んで頂きありがとうございます。
もしアプリが面白いと感じた方は、是非高評価して頂けると嬉しいです。
本作はシリーズ作品となっております。密室シリーズ作品である「鍵のない密室」、「呪いの密室」、「廃病院の密室」をプレイして頂くと「ゲームマスターの密室」がより面白くなります。
まだ前作をプレイしていない方は是非遊んでみてください!

新作脱出ゲーム「社畜勇者の脱出」をリリースしたので、是非遊んで見てください!
https://app-seed.com/brave-escape/