15th Prison
Developed by Zettanium · Published by Zettanium
At a glance
Overview
An action, adventure, indie game by Zettanium, published by Zettanium — single-player.
Steam’s own one-line description: “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.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for 15th Prison.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | No |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
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
Supported languages (12)
15th Prison FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is 15th Prison?
Steam classifies 15th Prison as a Action, Adventure, Indie, Simulation game, developed by Zettanium. 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.
How much does 15th Prison cost?
As of June 2026, Steam lists 15th Prison at $3.99. Prices and regional pricing change — check the Steam page for the current figure.
Is 15th Prison single-player or multiplayer?
Steam lists these modes for 15th Prison: Single-player. It lists a single-player mode.
Is 15th Prison on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists 15th Prison for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is 15th Prison out yet?
Yes — Steam lists a release date of May 20, 2025.
What platforms is 15th Prison on?
15th Prison is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is 15th Prison single-player or multiplayer?
Steam lists these modes: Single-player.
How much does 15th Prison cost?
Steam lists it at $3.99.
Does 15th Prison have achievements?
Yes — Steam lists 4 achievements for 15th Prison.
Who made 15th Prison?
15th Prison is developed by Zettanium and published by Zettanium.
Where to get 15th Prison
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Zettanium.