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15th Prison

15th Prison is a horror escape game. There is no exit from this prison. But examine your surroundings carefully and do not ignore any abnormalities. Take the envelope in each block and move on. Your carelessness may result in death.

All Reviews:

Positive (10) - 100% of the 10 user reviews for this game are positive.

Release Date:

May 20, 2025

Developer:

Zettanium

Publisher:

Zettanium

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Features

Steam Achievements

Steam is learning about this game

Languages:

	Interface	Full Audio	Subtitles
English	✔		✔
French	✔		✔
Italian	✔		✔
German	✔		✔
Spanish - Spain	✔		✔
Simplified Chinese	✔		✔
Portuguese - Brazil	✔		✔
Traditional Chinese	✔		✔
Japanese	✔		✔
Korean	✔		✔
Russian	✔		✔
Turkish	✔		✔

See all 12 supported languages

Includes 4 Steam Achievements

C Kapısı Seçildi!

15.Bloğa Ulaşıldı!

A Kapısı Seçildi!

B Kapısı Seçildi!

Title: 15th Prison
Genre: Action, Adventure, Indie, Simulation

Developer: Zettanium

Publisher: Zettanium

Release Date: May 20, 2025

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About This Game

You are stuck in a prison with endless blocks where notorious criminals are located. This is a prison famous for very horrific events.
To go to block 15 and find the escape route in the prison, observe your surroundings carefully and take the envelope given by the guard at each block pass. These envelopes are important for your escape plan!

Do not ignore any anomalies.
If you find anomalies, turn back immediately.
If you do not find anomalies, do not turn back. Move forward.

When you reach block 15, 3 different doors are waiting for you. You will encounter different endings and puzzles in these doors.
If you solve the puzzle at the end, your escape from prison will be easier. Good luck…

Playing Time
20-90 minutes

System Requirements

Minimum:

Requires a 64-bit processor and operating system
OS *: Windows 7 / 8 / 10 / 11 - 64 bit
Processor: Intel Core i3
Memory: 2 GB RAM
Graphics: NVIDIA GeForce GTX 650+
DirectX: Version 10
Storage: 2 GB available space
Sound Card: Any

Recommended:

Requires a 64-bit processor and operating system

* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.