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Sphenoid
Sphenoid is a first-person horror game set in a prison. As you explore the prison, you'll find clues and puzzles that you'll have to solve to escape. Enjoy a true horror experience.
Release Date:
Sep 17, 2025
Developer:
Publisher:
Kileka Games
Gameplay | Trailer
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Features
Single-player
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English ✔ ✔ ✔
French ✔ ✔
Italian ✔ ✔
German ✔ ✔
Spanish - Spain ✔ ✔
Simplified Chinese ✔ ✔
Korean ✔ ✔
Spanish - Latin America ✔ ✔
Japanese ✔ ✔
Portuguese - Brazil ✔ ✔
Portuguese - Portugal ✔ ✔
See all 11 supported languages
This game is not yet available on Steam

Planned Release Date: Sep 17, 2025

This game plans to unlock in approximately 3 months

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About This Game

You wake up in your cell on the same night that The Witcher was executed in the electric chair. Before saying goodbye, he said that he would take everyone with him, except for whoever had this... bone? Will he have kept his promise? Will you be able to escape the horrors that have been unleashed after his death?

Sphenoid is a horror escape room game that takes place in a prison. Solve puzzles, find clues and find out what happened to the rest of the prisoners.

The game is set in a dark and atmospheric environment. The prison is full of shadows and secrets, and you'll never know what's lurking around the corner.

Features:

  • The puzzles have been designed by escape room game creators.

  • Explore the different areas of the prison and face its horrors.

  • Find out what happened to the rest of the prisoners.

Explore the prison

Find objects and clues

Solve puzzles

Mature Content Description

The developers describe the content like this:

This Game may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Frequent Violence or Gore, General Mature Content

System Requirements

    Minimum:
    • OS: Windows 10
    • Processor: Intel Core I5-8400 / AMD Ryzen 3 3300X
    • Memory: 12 MB RAM
    • Graphics: GTX 970 / AMD Radeon RX 580
    • DirectX: Version 11
    • Storage: 5 MB available space
    Recommended:
    • OS: Windows 10
    • Processor: Intel Core I7-8700K / AMD Ryzen 5 3600X
    • Memory: 16 MB RAM
    • Graphics: GTX 1070 / RX 5600-XT
    • DirectX: Version 11
    • Storage: 5 MB available space
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