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Komeiji Koishi, the popular character of Touhou Project, has come to your desktop! This is a cute desktop pet - Desktop Youkai. You can touch her, feed her, chat with her, and set up your own unique interactive

Steam ↗Windows
GameWiki EditorialReviewed 5 guide topics

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About Koishi Navigation Desktop Youkai

Koishi Navigation Desktop Youkai places the Touhou character Komeiji Koishi on a Windows desktop as a small, animated pet. Players can touch, feed, and chat with her while she wanders the screen and occasionally delivers quirky lines.

The app includes a daily luck display, a toggle that controls whether Koishi tricks the player, and support for user‑created dialogue files. Community content can be shared through the Steam Workshop, and the title lists Steam Cloud, Family Sharing, and Commentary as features.

01 / THE GUIDE

Interaction Methods

The desktop pet can be touched directly on the screen, fed, and spoken to via a chat interface. Each action prompts Koishi to respond with either preset or custom dialogue, creating a responsive desktop companion.

Beyond direct interaction, Koishi may disappear, wander across the desktop, and emit occasional strange statements, adding visual variety to the desktop environment.

  • Observe how Koishi reacts when touched in different screen corners.
  • Try feeding her after a break to notice any change in her response style.

02 / THE GUIDE

Chat Customization

Dialogue triggers are stored in the file maindialogue.xlsx located in ./mods/dialogues. Editing this spreadsheet lets users define new keywords and associated responses, effectively teaching Koishi new lines.

The “Koishi Won't Trick” switch needs to be turned off to see Koishi disappear, wander around, and come up with strange lines, while custom dialogue files can be edited separately in the dialogue folder.

  • Back up the original maindialogue.xlsx before making changes.
  • Share edited dialogue files through the Steam Workshop for community testing.
Koishi Navigation Desktop Youkai official gameplay screenshot
Publisher-provided gameplay image · ZRIGN 地霊研究院

03 / THE GUIDE

Daily Lottery

Each day Koishi presents a lottery that shows the player’s luck for that day. The display is informational only and does not influence other aspects of the program.

The lottery simply shows today's luck, and the source encourages players not to worry about it.

  • Check the lottery immediately after launching to set a light‑hearted tone.
  • Use the displayed luck as a conversation starter with Koishi.

04 / THE GUIDE

Steam Workshop Integration

The title supports the Steam Workshop, enabling users to upload and download custom dialogue packs. This encourages community‑driven content creation and sharing.

Workshop items are listed as a feature, indicating that dialogue packs can be accessed directly through the Steam interface.

  • Browse popular dialogue packs before creating your own.
  • Rate downloaded packs to help other users discover quality content.

05 / THE GUIDE

Platform and Save Features

Koishi Navigation Desktop Youkai is released for Windows only, as indicated by the platform list. No macOS or Linux support is mentioned.

The feature list includes Steam Cloud, Family Sharing, and Commentary, showing that cloud saving, shared access, and optional commentary are available.

  • Confirm Steam Cloud is enabled in the client if you wish to use cloud saving.
  • Use Family Sharing to let household members launch the app on the same machine.

WATCH THE GAME

Koishi Navigation Desktop Youkai videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

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COMMUNITY

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    QUICK ANSWERS

    Koishi Navigation Desktop Youkai FAQ

    Is Koishi Navigation Desktop Youkai available on macOS or Linux?

    No, the listed platforms show Windows support only; macOS and Linux are not included.

    Does the daily lottery affect any in‑game rewards or mechanics?

    The lottery simply displays today’s luck and does not modify any other game elements.

    Can I share my custom dialogue files with other players?

    Yes, custom dialogues can be uploaded and downloaded via the Steam Workshop.

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    SOURCES & CREDITS

    Official resources and further reading

    Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-24. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.