Mortal Decay
Roger Kaffer · 2020 · Horror, First-Person, Survival Horror, Psychological Horror, Atmospheric
PC
Very Positive96% · 50
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Screenshots
About Mortal Decay
You awaken, a survivor of world war III, you are starving, just trying to move forward.With your strength slowly fading, you make way into an abandon prison.
Hopelessly you search for some food stored inside.
During your hunt, you find out the prison is not as abandoned as you thought it was...
You are being chased, your pursuers motives are unknown. With the little strength you have left, you are unable to fight, your only hope is to escape. Who are they, and what do they want with you?
Why is the prison abandoned and what happened to those who inhabited it? Collect clues to the prisons past and learn about the tragedies of those who lived there. 
- Stealth-based mechanics to sneak around enemies
- Expansive and detailed environments
- Multiple enemies with unique AI
- Immersive and horrifying story
- Chilling sound design
Can you make it out alive?
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
It took me 37 minutes, spread out over 5 years to beat this game. I started in 2021, played for six minutes, beat chapter 1, got scared, turned it off. I continued in 2025, started from chapter 2, played for 31 minutes, beat the game. Now... this is a solid, if simple game, with multiple scares and around a 40 minute runtime. It's not perfect but it does the job, and if you were in the mood for a horror game, this will probably scratch that itch.3 found this helpful
Nice game, nice storyline, nothing too bad... but it was very easy. Nice game to 100%1 found this helpful
Strong use of atmosphere and light/darkness, and there are some good stealth sequences although overall there is less use of stealth than I was hoping for going in. The final showdown is a bit underwhelming, but the twists and plot helped to make up for it. The skeletal look of both the living and the dead, as seen in the trailer, adds a visceral horror, while the sense of a decaying world - notes and letters are definitely worth collecting - gives a deeper unsettling feeling. Definitely a solid little game.1 found this helpful
For how cheap this game is, about the same price as a bar of chocolate these days, its great! The graphics, whilst basic add to the creepy vibes! The voicing is great, the story plays well, and its pretty easy. I highly recommend this game if anyone is looking to experience some gut wrenching jumpscares. I think this game got me about 8 times, to audibly yell lmao. 7/10, will certainly play again soon!
Best way to describe it is a budget version of outlast. It took me 58 minutes to complete and I would reccomend you play this game if you enjoy B movie horror like I do.
meh
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