Psychological Horror ADV Smartphone Steam Store Page Opens
The remake of a free browser horror game into a paid Steam release, with doubled endings and new content, tests whether a short, smartphone-based puzzle experience can sustain a commercial audience.
Key Facts
- OwataStudio opened the Steam store page for 'Smartphone' on July 21, 2026.
- The game was originally released for browsers on unityroom on May 13, 2026.
- The Steam version doubles the number of endings compared to the browser original.
- The protagonist Shinya Komatsu wakes up trapped in a locked room with only a smartphone to use for escape.
- The Steam release is scheduled for approximately one month after the store page opening.
Reporting from 2 sources: 4Gamer.net, Automaton.
Developer OwataStudio opened the Steam store page for its psychological horror adventure game 'Smartphone' on July 21, 2026. The game, originally released for browsers on unityroom on May 13, 2026, is being remade for PC via Steam. In 'Smartphone', protagonist Shinya Komatsu wakes up trapped in a dark, unfamiliar locked room with no memory of how he got there. The only object available is a smartphone, which players must operate to search for clues and escape. The Steam version revises the story, presentation, and controls compared to the browser original. While content up to ending 5 remains the same, the remake doubles the number of endings and adds new developments and conclusions. New apps not present in the browser version have also been added. The game is scheduled for release approximately one month from the store page opening. The browser version remains available for free on unityroom.
The Steam version adds apps not present in the browser original. Screenshots show new functions including a maps application and a messaging app called RINE, which players use to trace chat history with friends or call the police for help. The remake revises controls for PC, reconfiguring the smartphone interface for mouse and keyboard input.
The developer, OwataStudio, released the original browser game on unityroom on May 13, 2026. That version featured over five endings and depicted a tense situation within a short playtime. The game is characterized by simple puzzle-solving methods and a large amount of messaging app history. The browser version remains available for free on unityroom.
The story begins with protagonist Shinya Komatsu waking up in a dark, empty locked room with a splitting headache. He finds a smartphone with a lock screen, breaks through it, and uses limited functions to try to escape. As players gather information through calls and messages, a strange truth hidden behind the incident emerges. The game includes multiple endings, including unfavorable outcomes for the protagonist.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.