Planned Release Date: Oct 16, 2026

About This Game

Language-independent. No specific language is required to play. All rules are communicated through visual symbols and environmental cues.

When you woke up, you found yourself trapped in the corridor of a deserted multi-tenant building.

An impersonal space stretching on endlessly. Countless surveillance cameras. And red-circled ‘No Entry’ signs posted everywhere.

The notices read as follows:

・You must [strictly adhere to] the instructions on the red-circled signs under any circumstances.
・Find the lift and go down to a lower floor.
・Escape from this building.

In this building, the rules are everything.

Violations are not tolerated.

[Violation = Death]

Your objective is to explore the building whilst adhering to the instructions on the prohibition signs, use the lift to descend to the lower floors, and aim to escape. However, the building is filled with various enemies and traps. At times, you must determine the correct path to take; at others, you must avoid danger.

Use your powers of observation, memory and judgement to survive.

■ Game Features

・Tense gameplay where you explore whilst adhering to the rules on the ‘No Entry’ signs

・A variety of challenges, including approaching enemies and numerous puzzles

・Exploration elements that test your powers of observation and judgement

・High tension, as a single violation results in immediate failure

■ Playtime

90–150 minutes

■ Headphones or Earphones Recommended

This game includes a stage that detects the player's voice. If in-game audio is picked up by your microphone, it may trigger the voice detection unintentionally. For the best experience, we recommend playing with headphones or earphones.

■ Videos and Live Streams

We welcome video uploads and live streams.

Monetisation is permitted. Please include a link to the game’s Steam store page in the description or similar section.

*Streams containing defamatory or offensive content, or content that violates public order and morals, or that significantly damages the game’s image, are prohibited.
*Guidelines are subject to change without notice.