"The Locked Room Without a Key" is a horror mystery where you aim to escape from a locked room. It is the first installment in the Locked Room series. You wake up in a locked room with no key. Using only a message and an eerie presence as clues, you must investigate the room, solve puzzles, and deduce the truth hidden behind the incident. This adventure unfolds with a story filled with terror and psychological tension, and the ending changes depending on your final choice. ■ What you can do with this app - Explore the locked room and collect clues and items - Solve the mechanisms and puzzles you find to progress - Deduce the truth of the case from evidence and conversations - See the ending that changes depending on your final choice - Use the hint function when you get stuck ■ How to play 1. Explore the locked room and find clues 2. Solve the puzzles and unlock the mechanisms 3. Construct the truth from the evidence and conversations you've collected 4. The ending changes depending on your final choice ■ Game features 【Escape in a horror atmosphere】 The game progresses in a dimly lit locked room with eerie visuals. It's a mystery experience where fear, suspense, and psychological warfare intertwine. 【Logical deduction to uncover the truth】 Instead of just finding keys, you connect clues using lateral thinking and construct the culprit and the overall picture of the case. It's fun to think like a detective. 【Branching based on choices】 The ending changes depending on your choices in the final stages. You can try different choices and see different endings. [Hint Function for Beginners] Hints are available when you can't solve a puzzle. Even those new to escape games can play to the end. [Playable to the End] The main game includes ads and can be played to the end. ■ About the Locked Room Series This game is the first in the Locked Room series. The series includes "The Cursed Locked Room," "The Locked Room in the Abandoned Hospital," and "The Game Master's Locked Room," each playable as an independent story. ■ Recommended for: ・Those looking for an escape game with a horror atmosphere ・Those who want to know the truth of the story as well as solve puzzles ・Those who like mysteries where they can deduce the case like a detective ・Those who like adventure games that require careful thought ・Those who have played other games in the series