Miazma or the Devil's Stone

Miazma or the Devil's Stone

Miazma or the Devil's Stone

Miazma or the Devil's Stone

About the game

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!


  • 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
  • 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.

System Requirements


  • OS: Windows XP, Vista, 7, 8, 10
  • Storage: 7 GB
  • Processor: Intel Core2 Duo / AMD Athlon 64 x2
  • Memory: 2 GB
  • Graphics: 512 MB