PC $9.99 Region US
Games Adventure Miazma or the Devil's Stone
Miazma or the Devil's Stone: header artwork
Adventure · Private Moon Studios

Miazma or the Devil's Stone

Miazma or the Devil's Stone
Windows Brazil · l
Mostly Positive · 79% of 39
DeveloperPrivate Moon Studios
Wait Price verdict · US updated 18 hr. ago

The current price is 100% of the way from its all-time low to full price. Seasonal sales have priced it lower.

Why this verdict
Price position between all-time low and full price 100%
All-time low $0.99 · 21d ago
Player reviews 79% positive of 39
Quality score 79/100 · small sample
Value score 0/100

Offers

Official store prices and labeled keyshop comparisons

Official stores (1)
Steam
checked 18 hr. ago Lowest price
Store low $0.99 · Lowest across stores $0.99
Steam, official store, $9.99
$9.99 Buy on Steam
Direct store link. Payment stays with the store.
Report a problem

Price history

Accepted price history and recorded lows

Historical lows
All-time low ATL $0.99 2026-06-27
3-month low $0.99
12-month low $0.99
Current $9.99
Price events From the accepted price history
Jul 9, 2026
Sale ended · back to $9.99
Jun 27, 2026
New all-time low $0.99

About this game

What this game is, in the developer's words

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?

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.

Media

Trailers and screenshots straight from the store page

Miazma or the Devil's Stone price history and current deals

Miazma or the Devil's Stone for PC currently sells from $9.99 at authorized stores. Its all-time low is $0.99, set on 2026-06-27.

Frequently asked questions

Answered from this game's own price and edition data

How does the current Miazma or the Devil's Stone price compare?
The price verdict is wait. The current price is 100% of the way from its all-time low to full price. Seasonal sales have priced it lower.
How does $9.99 compare with the Miazma or the Devil's Stone price history?
$9.99 is 100% of the way from the all-time low of $0.99 to the full price. A lower price is recorded in the history.
Which stores list Miazma or the Devil's Stone?
Miazma or the Devil's Stone is tracked at steam. This section lists authorized stores and links to their store pages.
Scores
Steam reviews Mostly Positive · 79%
79% positive of 39
Media (7)
Requirements
System requirements platform
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
Facts
DeveloperPrivate Moon Studios
PublisherM.INDIE
GenresAdventure
ModesSingle-player
Links
Ratings
Brazill
Indonesia3+
Germany (Steam rating)0+
Report an issue with this page