A downloadable game for Windows and macOS

The demo represents a shortened version of the full game. It contains over 150 cards to use in combat, 30 enemies to fight, 3 dungeons to explore, and 6 townsfolk to befriend. There may even be a secret or two to uncover, but powerful foes await those who stray from the path.

Inspired by games such as Persona and Princess Maker, Dark Miasma is a time management game with visual novel storytelling and a deck-building twist. You only have a limited amount of time before the town of Galeport is overrun by demons, and it's up to you to decide how to best spend your time in order to become as powerful as possible, while earning the trust of the townsfolk.

In Dark Miasma, you take on the role of a new town guard in the small, remote village of Galeport. After learning of a demonic plot to destroy the town, it is up to you to fulfill your duty as a town guard and protect the citizens of Galeport by leading them safely to the Capital. However, the road to the Capital is perilous, and the townsfolk may not believe you unless you befriend them first.

Demons aren't the only problem the people of Galeport face, however. Many dark mysteries surround the tiny coastal village and its people, and getting to the bottom of them may irreversibly change the Fate of everyone involved.

Now on Kickstarter: https://www.kickstarter.com/projects/uncommonpotential/dark-miasma

Install instructions

How to run Dark Miasma Demo

  1. Download the ZIP file
  2. Extract the contents
  3. Run the Dark Miasma Demo executable


Dark Miasma Demo v0.3 164 MB
Dark Miasma Demo OSX v0.3 168 MB

Development log


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We're currently planning on including romance for 11 characters, and we estimate each playthrough will be between 2-4 hours.

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Thank you