15th Prison

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About

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
Platforms
Release date
Developer
Zettanium
Publisher
Zettanium
Age rating
Not rated
Website
http://studio.zettanium.com

System requirements for PC

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
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Last Modified: May 23, 2025

Where to buy

Steam