EDEN.schemata(); is a multi-ending sci-fi mystery adventure game, featuring headless corpses, a sealed laboratory, a limbless android suspect/heroine, and an amnesiac protagonist. The game design and gradually UI change in reflection of your actions.
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Planned Release Date: 2024

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About This Game

EDEN.schemata(); is a multi-ending sci-fi mystery adventure game, featuring a headless corpse, a sealed laboratory, a limbless android heroine (and the main suspect), and an amnesiac protagonist. The game design and UI change gradually in reflection of your actions.

The steampunk-style artwork and the character animations are all hand-drawn by a single animator.


“Nice to meet you... again?”

An android named “Eve” speaks to “you”, before a headless corpse apparently known as “The Professor”.

Completely devoid of any sort of memory, you, together with Eve—an android, and the Professor’s apparent killer—must uncover the truth of what really happened here.

Use your powers of deduction to unravel the mystery of this locked laboratory, revealing one truth after another.
We hope you enjoy this all-new type of mystery—the kind that’s only possible in a video game.

Characters depicted in beautiful hand-drawn animation

You (The Protagonist)

Has no idea who they are due to amnesia. Somewhat unreliable.


An android. As the main character regains consciousness, Eve is standing before the corpse of "the Professor". The heroine, and also the prime suspect.

The Professor

Eve’s creator. Found as a headless corpse upon the protagonist’s awakening.


An integrated discipline interface. An AI that punishes people for their crimes, but also speaks like a little girl for some reason. Can be infuriating.

UI and game design that change along with game progress

The UI and game design in general will change in accordance with your game progress.

The story and UI work together as the general game design gradually transforms, providing a brand new, almost magic trick-like game experience.

Main Staff/Comments

Scenario: Van Madoy
  • Revoir series
  • Murder at Kogetsukan (Fate/GrandOrder)
At the beginning of the project, I thought, "Is there even anything left for me to do in the world of mystery games that my predecessors haven’t already done themselves?” However, as development progressed, I reconsidered and thought, "Maybe I can realize the ideal mystery via the medium of video games.” The concept of this game is "a mystery that can be solved over and over again”. I hope you enjoy the experience of solving the kind of mystery that is only possible with video games – one that’s sort of different from other “multi-ending” games.

  • Gensou Skydrift
  • Living in the Ending World
I consider the “ADV” genre to actually be a no-rules, cross-species battle. We bring you an all-new breakthrough ADV worthy of its striking visuals and writing.

Character Design/Animation: Yutaro
What's the point of using hand-drawn animation to express characters in games, especially in ADV-style stand-up fashion? Well, I’d like to give any answer other than “This is the only way I can!”, so let’s say it’s that I'm striving to depict my art in a way that shows the pleasure and rawness of animation in an ADV layout.

Sound: RD-Sounds (凋叶棕)
  • Sacrament (Vatican Miracle Examiner ED)
  • Absolute One-way Street ~Unreachable Message (Touhou Project arrangement track)
A story is, after all, a combination of pictures, sounds, and stories.
Game scenes, controls, background music, SFX, story, visuals... I want to find out just what I can do using sound to fuse all of these elements together in order to tell a "story" in a game.

System Requirements

    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: 1.6 Ghz
    • Memory: 1 GB RAM
    • Storage: 250 MB available space
    • Requires a 64-bit processor and operating system

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