Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea- — Steam capsule
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Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea- Free Download

by DLsite

Windows · Sep 25, 2018

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea- worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Horror RPG players who want to investigate a mansion with customizable character builds
  • Players who enjoy choosing a small party from companions with different abilities
  • RPG fans who accept restarting an exploration run after retreat or defeat

Skip it if you…

Saves you a refund
  • Players seeking a fixed protagonist rather than character creation and variable party selection
  • Players who prefer linear progression without retreating and replaying the mansion from the beginning
  • Players looking for a fantasy setting instead of Cthulhu Mythos horror

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-

Rather than treating defeat as a final setback, the game makes withdrawal part of progression: leaving the mansion preserves the current level for another attempt. Companion selection and customizable parameters also replace a fixed party and predefined protagonist.

What is Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-?

Investigate an abandoned mansion with a customizable high-school student protagonist and two selected companions.

Gender, name, parameters, and skills can be adjusted to create different character strengths, such as high parameters with fewer skills or lower parameters with more skills. Five companions are available, but only two can join the exploration, changing the experience according to their abilities. The mansion contains combat, exploration, healing-item management, and hidden secrets. During the story, leaving the mansion is possible at any time. A retreat preserves the current level for a new attempt, including after defeat, while unlocked achievements can provide parameter bonuses in later games.

How Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea- plays

01Custom Protagonist
The main character's gender, name, parameters, and skills can be set before facing the mansion's threats.
02Companion Selection
Two of five companions can accompany the protagonist, with different choices affecting the exploration experience.
03Retreat And Restart
Leaving the mansion retains the current level for a fresh attempt, and this option remains available after a battle defeat.
04Achievement Bonuses
Certain achievements grant parameter increases for the protagonist when starting a new game.

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Picked by overlapping fit notes and genres, not an editorial comparison.

Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-: platforms & release

Is Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea- worth it?

It is worth it if: horror RPG players who want to investigate a mansion with customizable character builds. Skip it if: players seeking a fixed protagonist rather than character creation and variable party selection.

Where can I download Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-?

Use the Download Now button on this page: it opens Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-'s store page, where you can choose how to get it.

What platforms is Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea- on?

Windows only.

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