A detective adventure in a harbor town on the drift-ice coast, chasing a death the police wrote off as an accident. Type your own questions to interview the townspeople, then compare the testimony in your notebook and the web of relationships to catch the stories that don't line up

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About This Game

This is a detective adventure set in a small harbor town on the drift-ice coast of Hokkaido.

A death that was about to be dismissed as an accident leads you to begin interviewing the people of Kiribashiri Town.

Instead of simply choosing from predefined commands, you can type your own questions and investigate whatever catches your attention.

Gather testimony, investigate people and locations, and review the information recorded in your notebook.

As you continue your investigation, small inconsistencies begin to emerge.

Why did this person say that?
Does this testimony contradict what you heard earlier?

Ask questions, compare testimony, and uncover what lies behind the case.

Key Features

  • Type your own questions during interviews

  • Investigate people and locations

  • Record discovered information in your notebook

  • Find contradictions in testimony and pursue them

  • A self-contained mystery set in a winter harbor town

  • Investigation-focused gameplay with no action controls required

In the end, use the testimony and evidence you have gathered to reconstruct the case and present your own conclusion.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

本作の台詞と描写は、あらかじめ書かれたものだけを表示します。プレイ中に文章を生成する仕組みはなく、インターネット接続も使いません。
制作にあたっては、生成AIを次の範囲で使っています。
・文章:登場人物の台詞、描写、質問の言い換えは、開発者が設計した設定と検査のもとで生成AIが執筆し、開発者が確認・修正しました。
・画像:背景画像とストアページの表紙画像は、生成AIで作った画像を開発者が加工したものです。
・音楽:BGMと主題歌は、生成AI(Suno)で制作しました。主題歌の歌詞も生成AIで作成し、開発者が確認しました。
・プレイ中の入力の照合:プレイヤーが入力した文章を、用意された台詞のどれに当たるか判定するために、小さな言語モデル(multilingual-e5-small)をプレイヤーのPC内で実行します。このモデルは文章を生成せず、入力内容を外部へ送信しません。
効果音には生成AIを使っていません。

System Requirements

    Minimum:
    • OS: Windows 10 64-bit
    • Processor: Intel Core i5-7500 / AMD Ryzen 3 1200 or equivalent
    • Memory: 8192 MB RAM
    • Graphics: NVIDIA GeForce GTX 1050 / AMD Radeon RX 560 or equivalent
    • DirectX: Version 12
    • Storage: 5120 MB available space
    • Sound Card: Windows-compatible sound card
    • Additional Notes: Requires a 64-bit processor and operating system. SSD recommended.
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