Mortal Decay — Steam capsule
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Mortal Decay Free Download

by Roger Kaffer

Windows · Oct 27, 2020

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is Mortal Decay worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Survival-horror players who prefer evasion over direct combat
  • Players who enjoy investigating abandoned locations through environmental clues
  • Horror fans seeking a short, focused chase through a prison setting

Skip it if you…

Saves you a refund
  • Players looking for combat-focused action rather than stealth and escape
  • Players who prefer open-ended worlds instead of a focused prison investigation
  • Players seeking lighthearted stories rather than post-apocalyptic horror

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on Mortal Decay

Instead of framing horror around fighting enemies, the game places a weakened survivor in a prison where escape and concealment take priority. Investigation of the facility’s past replaces a straightforward combat loop, with clues and pursuit carrying the structure.

What is Mortal Decay?

Mortal Decay follows a World War III survivor who enters an abandoned prison while starving and physically weakened.

The prison contains dangers, and unknown pursuers chase the survivor, who cannot fight and must escape instead. Stealth mechanics support sneaking past enemies, while clues reveal what happened to the prison and the people who lived there. The game presents detailed environments, several enemy types with distinct artificial intelligence, a horror-focused story, and sound design intended to create a chilling atmosphere. Exploration centers on searching the prison for food and investigating its past while trying to stay alive.

How Mortal Decay plays

01Stealth-Based Escape
The survivor relies on hiding and evasion because fighting is not available during the pursuit.
02Prison Investigation
Clues found inside the facility reveal events involving its former inhabitants.
03Distinct Enemy Behavior
Several enemy varieties use different artificial intelligence behaviors while searching for the survivor.
04Detailed Environments
The prison is presented as a large environment for searching and movement.

Games like Mortal Decay

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Euphoria GamesWin · 2023For:Horror-adventure players who want a story centered on a masked kidnapperSkip if:Players seeking combat-focused gameplay may find the emphasis on puzzles and sneaking limiting.
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Heart-Lung Machine

SchreckstoffWin · 2024For:VR horror players who want stealth and physical hiding mechanicsSkip if:Players seeking a lighthearted or relaxed game rather than hardcore survival horror
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Underwater

GamesforfarmWin · 2021For:Action-adventure players who want an escape story set in an underwater prisonSkip if:Players seeking a broad range of locations may find the underwater-prison setting restrictive
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Rainbow Gate

7EVIL StudioWin · 2026For:Survival horror players who want stealth and evasion alongside investigationSkip if:Players seeking frequent direct combat rather than hiding, sneaking, and escaping threats

Picked by overlapping fit notes and genres, not an editorial comparison.

Mortal Decay: platforms & release

Is Mortal Decay worth it?

It is worth it if: survival-horror players who prefer evasion over direct combat. Skip it if: players looking for combat-focused action rather than stealth and escape.

Where can I download Mortal Decay?

Use the Download Now button on this page: it opens Mortal Decay's store page, where you can choose how to get it.

What platforms is Mortal Decay on?

Windows only.

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