Heartsworn Abyss is a survival-thriller taking place in a modern dystopian world. Can Rei, a broken man whose life is on the mend, hope to oppose the sinister machinations of Saitou Corporation? Or will he and Akari be swallowed by Miyogawa’s darkness, to be strung along like broken puppets?
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Early Access Game

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Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“The traditional visual novel is typically told through the viewpoint of a single character. It's a solid system, but we feel it’s limited in some ways, especially when it comes to emotional storytelling. So, we opted for an ambitious, dual-protagonist system in Heartsworn Abyss. You’ll experience a heartwrenching love story through the eyes of the graceful starlet, Akari Hashimoto, and her mysterious male companion, Rei.

We’re releasing our game in Early Access to hear your thoughts on our approach! Are the characters engaging in their biases, experiences, and aspirations? Is it interesting to learn about events and information privy to only one character? Your early feedback will allow me to fine-tune their scenarios to provide the most… “maddening” sense of intrigue and jealousy between the two parties, as well as address any glaring flaws in perspective.

Moreoever, as a game where choices matter (for real!), there are a variety of bad routes and endings awaiting the characters. With your guidance, I can hopefully tune the story’s progression so there’s a satisfying amount of player agency, while also allowing the characters to "breathe" and express their unique personalities. So please, let us know if you want more "choosing" or "watching!"

Like all visual novels, the gameplay in Heartsworn Abyss is primarily text-based with a focus on reading. There is a variety of illustrations and music, along with voice acting. As Early Access progresses, we plan to use some of the proceeds from Early Access to enhance the reading experience by adding bonus illustrations, scenarios, and voices.

The world of Miyogawa is a vast place, and we are always looking for places to improve on!”

Approximately how long will this game be in Early Access?

“We expect to wrap up development in early 2026. Bug fixes and maintenance will continue past that, but the main storyline will be concluded.”

How is the full version planned to differ from the Early Access version?

“We expect the full version to have at least ten chapters, two full character sprites, ten full-page event illustrations, voice acting, and an extensive selection of backgrounds and music. More content may be added if our Early Access is really well-received!”

What is the current state of the Early Access version?

“The current Early Access version (v0.1) contains: Prologue and Chapter 1 (24k words), full heroine character sprite, voiced protagonist and heroine, CG gallery, backgrounds, and music.”

Will the game be priced differently during and after Early Access?

“We don’t any plans to increase the price at this time. We might increase the price slightly near launch, as additional features and content are added, but this isn’t set in stone.”

How are you planning on involving the Community in your development process?

“We have a discussion forum and a contact email listed to answer any player concerns. In addition to that, we have an active Discord where players may chat and voice their feedback.”
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About This Game

Heartsworn Abyss is 100% AI-free, with beautiful illustrations and voice acting by professional Japanese illustrators and voice actors!

SYNOPSIS:

Rei Tsukiyora is a jaded man who runs a pawnshop in Miyogawa’s seedy underworld. One evening, he comes across a despondent Akari Hashimoto fleeing from her captors. Unable to abandon a young girl to the dangerous streets, Rei begrudgingly takes her in, offering her a reprieve until she gets her bearings in order.

One thing leads to another, however, Akari’s stay becomes more… permanent then he had envisioned. For Akari, who has only led a high-flying life, and for Rei, a man who lives off the skin of his teeth, life together is… manageable (if not amusing).

While Akari may have renounced her past life as a heiress, fate won’t let them go that easily. Akari’s entrancing looks and eminent status catch the eyes of Ryuichi Satou. As the head of Miyogawa’s largest company, he spares no resources on seducing her. An irate Ryuichi even accosts the pair at Rei’s residence, though Akari flatly rejects him.

Humiliated, the scorned prodigy concocts a grand scheme that will lead to the hostile takeover of Akari’s company, and eventually, her heart. He swears to sully every fiber of her innocence. As for Rei… Ryuichi vows to bury him in an everlasting abyss.

ABOUT THIS GAME:

Heartsworn Abyss is a voiced visual novel, a Japanese genre that combines narration with beautiful anime illustrations, music, and voice acting. Gameplay primarily consists of reading with a few interactive elements (mainly limited to advancing the text on screen).

Nothing in Heartsworn Abyss is sourced from AI, and we intend to keep it that way moving forward!

Illustrators: kamiyan, Subaru Tsukiyono
Voice Actors: Shu Sagisawa, Yui Hibari
Script: amaryllis

Mature Content Description

The developers describe the content like this:

Contains: Comic Mischief, Occasional Profanity and Violence, Psychological Horror, Expressions of Deep Loss and/or Sadness, Blackmailing

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS *: Windows 7 or higher.
    • Processor: 2.0 Ghz 64-bit Intel-compatible
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.0 or DirectX 11
    • Storage: 5 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    Minimum:
    • OS: 10.10+
    • Processor: 2.0 Ghz 64-bit Intel-compatible (Apple silicon supported through Rosetta 2)
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.0
    • Storage: 5 GB available space
    Recommended:
      Minimum:
      • OS: Ubuntu 16.04+
      • Processor: 2.0 Ghz 64-bit Intel-compatible
      • Memory: 2 GB RAM
      • Graphics: OpenGL 3.0
      • Storage: 5 GB available space
      Recommended:
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