# Smartphone: Unravel a Dark Mystery from a Locked Room

> A psychological horror adventure where you escape a locked room by investigating a smartphone. Make choices that alter the narrative and uncover a dark truth.

Release date: 2026-08-23
Tags: adventure, interactive-fiction, choose-your-own-adventure, 2d, text-based, dark, horror, mystery
Source: https://store.steampowered.com/app/4937120/
Article page: https://web-autoai.com/articles/smartphone-unravel-a-dark-mystery-from-a-locked-room?lang=en

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## Overview
Awakening in an unfamiliar, locked room with no clear way out, your only companion is a smartphone. This psychological horror adventure from OwataStudio tasks you with navigating the device's interface – calls, messages, and apps – to uncover clues and find your escape. Every choice you make, every piece of information you trust, shapes the unfolding narrative. As you gather more fragments of truth, a disturbing reality behind the incident begins to surface.

## Highlights
*   **Immersive Smartphone Interaction:** Experience a unique gameplay loop where you directly interact with the smartphone's screen, mimicking real-world usage to explore and deduce.
*   **Branching Narrative & Multiple Endings:** Your decisions and actions directly influence the story's progression, leading to various distinct conclusions.
*   **Psychological Horror & Mystery:** Delve into a chilling atmosphere as you piece together the truth, gradually approaching the heart of the mystery within the confines of the room.

## Who It's For
Fans of text-based adventures, interactive fiction, and psychological horror will find themselves engrossed in the tense atmosphere and narrative-driven puzzles. If you enjoy games that rely on deduction and careful decision-making, this title offers a compelling experience.

## Game Info
*   **Developer:** OwataStudio
*   **Publisher:** OwataStudio
*   **Genre:** Adventure, Indie, Horror
*   **Release Date:** August 23, 2026
*   **Features:** Single-player, Steam Achievements, Family Sharing
*   **Languages:** Japanese