Steam game

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.

$3.99 May 20, 2025

By Zettanium

Windows
View on Steam
15th Prison - Zettanium. Popular. Released May 20, 2025
Screenshot of 15th Prison gameplay showing in-action mechanics Screenshot 2 of 15th Prison - additional gameplay view Screenshot 3 of 15th Prison - more gameplay footage Screenshot 4 of 15th Prison - final gameplay screenshot

Overview

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

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