Aetherium Hearts

Roleplaying

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

In Selwyn, a town at the edge of the Ash Marches, raise adventurers and send them down into the labyrinth. The dive unfolds on its own — your adventurer walks, fights, and either returns or does not — and you can close the app while it runs. When they come home, an AI weaves what happened into a short tale, one telling for every dive, never quite the same twice. ◆ Three labyrinths The Ashen Corridor, the Frostcrystal Archive, and the Ember Crucible, each with its own depth and danger. At the bottom of each waits an Aetherium Heart. ◆ Automatic exploration Send an adventurer in and they explore on their own. Progress continues even while the app is closed. ◆ A tale of every journey Read what happened as prose, written by AI from the events of that dive. Share it straight to X, Threads, Bluesky, or Discord. ◆ A town and its people Eight facilities stand in and around Selwyn — armory, sundries, forge, guild, inn, temple, shrine, library. Adventurers who go missing can be sought and brought home. ◆ A world ranking Hearts offered at the Shrine of Astel are counted and ranked against every other town's adventurers. This app shows ads (a banner and an optional rewarded video when reviving a fallen adventurer). There are no in-app purchases.

Ratings & Reviews

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Refreshed the app package. No changes to gameplay.

Version 1.0.1

The developer, Hitoshi Igarashi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • User Content
    • Identifiers
    • Usage Data
    • Other Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Hitoshi Igarashi
Size
  • 34.3 MB
Category
  • Roleplaying
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English and Japanese
Age Rating
13+
  • 13+
  • Learn More
  • Frequent
    Cartoon or Fantasy Violence
    Contests
    Guns or Other Weapons

    Infrequent
    Mature or Suggestive Themes
    Horror/Fear Themes

    Contains
    Advertising
    User-Generated Content
Copyright
  • © 2026 Hitoshi Igarashi
  • Developer Website
  • Privacy Policy