謎解き×推理×脱出ゲーム ホラー密室ミステリー-鍵のない密室
謎解き×推理×脱出ゲーム ホラー密室ミステリー-鍵のない密室 Summary
謎解き×推理×脱出ゲーム ホラー密室ミステリー-鍵のない密室 is a ad-supported Android app in Adventure by AppSeed Inc.. It has about 69.3K+ installs Based on AppGoblin estimates, it reaches roughly 3K monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store metadata: updated Mar 23, 2026, version 50.
Recent activity: 310 installs this week (2.9K over 4 weeks) showing above average growth View trends →
Advertising: AppGoblin detected 1.00 monetized ad creatives shown inside the app.
Data tracking: SDKs and third-party integrations were last analyzed on Mar 18, 2026. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Nov 1, 2025.
Store info: Last updated on Google Play on Mar 23, 2026 (version 50).
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App Description
A free mystery-solving escape game. A locked-room horror suspense and psychological battle. A detective adventure where you gather clues to solve a murder case and escape from a terrifying locked room.
◆ Puzzle Solving x Deduction x Escape! A Chilling Horror Mystery
"The Locked Room Without a Key" is a full-fledged mystery adventure that blends puzzle solving, deduction, escape games, and horror.
This free game challenges you to escape a locked room, gather clues, deduce the truth, and solve a murder case.
Experience a thrilling story where suspense, terror, and psychological warfare intertwine.
◆ Game Features
- A free-to-play mystery-solving escape game
- A horror suspense and terrifying experience set in a locked room
- A deduction game where you search for clues and logically approach the truth
- Utilize lateral thinking and psychological tactics to corner the culprit
- An adventure game where you become a detective and experience a murder case and investigation
- A branching mystery where the story changes depending on your choices
- Hint function available for beginners
- Offline playable and free, so you can play without worrying about data usage
- A story that continues in the series: "The Cursed Locked Room," "The Locked Room in the Abandoned Hospital," and "The Game Master's Locked Room"
◆ Story Summary
One day, you are trapped in a "locked room without a key."
All that remains is a mysterious message and an eerie presence.
As you gather clues amidst the terror and deduce the truth hidden behind the incident and the culprit,
Eventually, the "chilling secret" lurking deep within the locked room will be revealed…
A thrilling escape mystery where horror and deduction intertwine begins now.
◆ How to Play
1. Explore the locked room and discover clues.
2. Solve puzzles and decipher mechanisms.
3. Deduce and investigate the truth from evidence and conversations.
4. The ending changes depending on your final choice.
◆ Recommended for:
- Those who like puzzle games and mystery games.
- Those who want to experience fear and thrills in a horror escape game.
- Those looking for a game where they investigate and solve a murder case as a detective.
- Those who like locked-room mysteries, suspense, and lateral thinking games.
- Those interested in terrifying settings such as abandoned hospitals and cursed locked rooms.
- Those looking for free escape games that can be played offline.
- Those looking for new horror games and new puzzle games.
◆ Series Titles
- The Cursed Locked Room (A horror-heavy escape mystery)
- The Locked Room in the Abandoned Hospital (A suspenseful escape game where fear and deduction intersect)
- The Game Master's Locked Room (A battle of wits full of tricks)
Can you uncover the truth from a locked room filled with fear and suspense?
Download it for free now and try to escape from a mysterious locked room.

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