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Miazma or the Devil's Stone

Game overview

Miazma or the Devil's Stone

MIAZMA is the second Jonathan Hunt adventure, sequel to award-winning FMV title Yoomurjak’s Ring. The agile NY journalist embarks on a new investigation after a curious meteorite. What is inside the devilish stone? Is it a huge gem, a magic formula or a devastating substance?

Adventure FMV Point & Click
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34 reviews · via SteamSpy

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About this game Read the full description
Jonathan Hunt is a journalist from New York. Solving the case of Yoomurjak’s ring earned him the reputation of an expert of mysteries in the past. This time he is asked by a nuclear physics institute to throw light upon a disappearance, but the mission turns into a hunt for a peculiar meteorite that fell on earth centuries ago. What is inside the devilish stone? There must be a good reason why certain persons have been trying to get hold of it at all costs.



Playing as the main character in third-person perspective, you will

- Investigate a curious disappearance and search for clues

- Decipher secret documents

- Solve puzzles left behind from the past

- Explore the enigmas of obscure laboratories in a top-level scientific institute

- Interview characters about what they know and what they do

- When in trouble, use the laws of nature and common sense to escape

- Unravel the legend of mysterious cosmic treasures and prevent disaster!



Key features:

• Immersive storyline

• Third-person perspective

• Live-action cinematic scenes

• Over 20 real locations to explore

• Over 20 characters by excellent actors and voice artists

• A series of puzzles and challenging tasks perfectly integrated in the plot

• Smart apps for various tasks

• Easy mode: optional tutorial, in-game hints and skip-puzzle functions

• Logged dialogues

About the previous episode: Yoomurjak’s Ring

The story begins when Jonathan Hunt, a journalist from New York, arrives in the city of Eger in Hungary for a break. He has local ancestry and speaks the language, but this is not the only motive for his visit. In the heritage of his great-grandfather, the globetrotter professor Samuel Hunt (known from the Agon series), he found two letters dated back in 1898. The letters were from a somewhat lunatic Hungarian scientist about a time machine he claimed to be working on. The references point to Eger, and Jonathan wants to find out what happened to the man and his preposterous invention. But soon he realizes that someone is desperately trying to stop him…



About the development of Miazma

Like Yoomurjak’s Ring, this title is also an FMV adventure game, developed by the same crew. It takes you to real locations with live-action cinematic approach. The game designer is Pierrot, also known for his adventure game series Agon.



Miazma was developed with the support of the Institute for Nuclear Research of the Hungarian Academy of Sciences (Atomki) in the framework of scientific project Understandable-available physics. English localization was supported by EPS, NuPECC and ENSAR2. Additional supporters: KIA Motors Hungary.

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System requirements Windows

Windows

Minimum

Minimum:
  • OS *: Windows XP, Vista, 7, 8, 10
  • Processor: Intel Core2 Duo / AMD Athlon 64 x2
  • Memory: 2 GB RAM
  • Graphics: 512 MB
  • Storage: 7 GB available space
Game details Languages, features & support
Publisher
M.INDIE
Brazilian rating
l
Steam Germany rating
0
Features
Single-player, Family Sharing
Languages
English*
*languages with full audio support
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Structured language support (1)
LanguageInterfaceFull audioSubtitles
EnglishYesYesYes
Steam store page fresh · checked 2026-10-26 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
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Game Insights

Buy Verdict

Wait — $9.99.

Not the best time to buy. Price could improve with future sales.

▬ ~19 days until next sale

Player Health

Struggling — 0 daily average.

Player count down 100% over recent period.

▼ -100% trend

Value Score

Great Value — 93th percentile.

Price-to-player ratio ranks in the 93th percentile. Priced as Market at $9.99.

▲ Market pricing tier

Genre Benchmarks

Player Count Top 8%
Value Ratio Top 7%

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Developer Analytics

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Frequently Asked Questions

Is Miazma or the Devil's Stone worth buying right now?
Wait — $9.99. Not the best time to buy. Price could improve with future sales.
When does Miazma or the Devil's Stone go on sale?
Not the best time to buy. Price could improve with future sales.
How many people play Miazma or the Devil's Stone?
Struggling — 0 daily average. Player count down 100% over recent period.
How many players are currently playing Miazma or the Devil's Stone?
0 players are currently in-game on Steam.
Is Miazma or the Devil's Stone free to play?
Miazma or the Devil's Stone costs $9.99 on Steam.
What genre is Miazma or the Devil's Stone?
Miazma or the Devil's Stone is a Adventure game.
Who developed Miazma or the Devil's Stone?
Miazma or the Devil's Stone was developed by Private Moon Studios and published by M.INDIE.
What platforms does Miazma or the Devil's Stone support?
Available on Steam for Windows.

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