15th Prison Free Download

15th Prison is a chilling horror escape game where freedom seems impossible there is no way out. Yet, if you observe your surroundings closely and pay attention to every unsettling detail you might find a path forward. Collect the envelope hidden in each block and press onward. But be warned a single moment of carelessness could cost you your life.

15th Prison Overview

You find yourself trapped in an endless prison a nightmarish labyrinth where each block holds increasingly dangerous criminals and unspeakable horrors. Your only chance at freedom lies in reaching the mysterious Block 15, where rumors whisper of an escape route.
To survive this ordeal you must follow strict rules examine every detail of your surroundings with extreme care never overlooking anything unusual. In each block, take the envelope provided by the guard – these contain vital clues for your escape. Most crucially, trust your instincts if you detect any anomalies turn back without hesitation. If all appears normal press forward without looking back.
When you finally arrive at Block 15 you’ll face three ominous doors, each hiding different fates and deadly puzzles. Solving these final challenges correctly may grant you freedom, but failure will leave you trapped forever in this hellish place. The prison watches, waits and toys with those who dare attempt escape. Will you be the first to break free. or just another victim claimed by the 15th Prison?

Game Info

Title: 15th Prison
Genre: Action, Adventure, Indie, Simulation
Release Date: 20 May, 2025
Developer: Zettanium

Game Features

You are trapped in a never ending prison known for its brutal history and terrifying inmates. Every block feels more dangerous than the last.
Pay close attention to your surroundings Miss something weird? That could be your last mistake.
The guards leave envelopes in each block grab them because they hold secrets to escaping.
If something feels off trust your gut and turn back immediately. If everything seems normal keep pushing forward.
When you finally reach Block 15 you will face three doors each hiding different puzzles and endings. Choose wisely.
The better you solve the final challenges the higher your chances of breaking free.
The game is designed to be quick 20 90 minutes packing in suspense without overstaying its welcome.
The devs nailed the eerie atmosphere making every step feel tense and unpredictable.
At launch it had a 100% positive rating on Steam praised for its smart puzzles and chilling vibe.
No teammates no hand holding just you against the prisons horrors.

Step-by-Step Download & Installation Guide

Click the green button below to go to MEGA.
Wait 15 seconds, then click the “free download” button.
Note: Download speeds may be slower on the free plan. For faster transfers, consider upgrading to MEGA.
Once the download finishes, right-click the .zip file and select “Extract to 15th Prison“.
Requirement: You’ll need 7-Zip (download if you don’t have it).
Open the extracted folder, then run the game as administrator.
If you see any missing DLL errors, install the required programs from the Redist or _CommonRedist folder.

Download the full version of 15th Prison using the links below.

MEGA File Size: 1.60 GB

Torrent File Size: 1.72 GB

Reminder: This download is completely free and won’t cost you a penny. However, If you love the game and want to purchase it, you can support the developers by doing so here.