15th Prison Free Download PC Game from Steamunlocked as it provides Pre-Installed Games in a direct link. 15th Prison is an Adventure Game developed by Zettanium and released on 20 May, 2025.

About 15th Prison

You’re trapped in a messed-up prison full of psycho inmates and creepy history. Block after block, it only gets weirder.

To escape, make it to Block 15. At each block, grab the envelope from the guard—it’s key to the plan.

Watch for anything off. If something’s weird, turn back. If not, just keep pushing forward—don’t second guess.

At Block 15, you’ll face three doors. Each leads to a different path with its own puzzles and endings.

Crack the puzzle at the end and you’ve got a shot at freedom. No pressure… good luck, dude.

How to Download & Install 15th Prison

1. So, click on the download button available below and upon clicking it you will be taken to the website (PixelDrain) that hosts the pre-activated game file.
2. However, there you will find a download button click on it and the game will start downloading. Then wait for it to finish downloading. In some cases, there will be a timer so you will have to wait. After that timer ends then you will have to click on the download button.
3. Once the game 15th Prison is done downloading, go to the folder where the download is present, and from there right click the .zip file and click on “Extract the Game” (To do this you can use 7-Zip or WinRAR, which you can get here).
4. Further, open the extracted folder and look for the game .exe application, after finding it right click on it and select run as administrator. 
5. After that, the game will start, and have fun and play it! So, remember, it is necessary to run the game as the administrator. Also, if you get any missing dll errors, then go to the Redist or _CommonRedist folder and install all the programs available in it.

15th Prison Free Download

Click on the button available below to start Download 15th Prison Free Download with a direct link. Further, it is the full version of the game, and remember to run the game as administrator.

NOTE: 15th Prison is already pre-installed for you by the admin of steamunlocked. So, this means that you do not have to install the game. However, if you get any missing dll errors, then you must make sure to look for a _Redist or _CommonRedist folder and install directx, vcredist, and all other programs available in that folder. These are basically, supporting programs or drivers which you need for the game to run. Also, there is a ‘HOW TO RUN GAME!!.txt’ file which will provide you with some more help. So, remember, that you have to run the exe as the administrator as this will solve the “game not saving” problem. Another good practice is to disable your anti-virus program or Windows Defender before extracting the game to prevent it from deleting the cracked files. If you require some more help then click here. 

System Requirements

15th Prison requires a 64-bit processor and operating system

• 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