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My Koi official game artwork

THE PRACTICAL GUIDE

My Koi Guide

My Koi, number 1 hit on the Mac App Store (Games), is a beautiful and relaxing fish pond app. Customise and name each fish. Feed them daily. Watch them grow. Collect new fish. Escape and Relax.

Steam ↗Windows
GameWiki Pro EditorialReviewed 5 guide topics

GET YOUR BEARINGS

Plan your next My Koi session

Our independent guide examines My Koi’s documented systems so you can observe how each feature behaves without relying on hidden tricks. By focusing on fish tracking, pond design, ambient effects, and milestone progress, you can keep a clear record of what the game offers.

01 / THE GUIDE

Compare Pond Layouts

Set up two ponds with different rock and plant arrangements. Record how each visual layout feels and whether the changes influence how often you tap fish for feeding.

  • Observe happiness levels after each feeding session.
  • Use names to differentiate fish when reviewing stats.

02 / THE GUIDE

Monitor Growth Stats

Select a single koi and note its size and growth stat each day. Compare the entries to see how the displayed numbers evolve over time.

  • Try contrasting water colours with different lighting times.
  • Arrange plants to create varied visual depth.
My Koi official gameplay screenshot
Publisher-provided gameplay image · Sakana Studios

03 / THE GUIDE

Ambient vs Full Mode

Play a session in ambient mode, then switch to full visual mode. Observe any differences in relaxation or focus that arise from the presence or absence of visuals.

  • Check the growth stat after each feeding to see updates.
  • Note any correlation between happiness changes and feeding.

04 / THE GUIDE

Plan for Milestone Unlocks

Before reaching the next milestone, sketch a layout for the new fish slots. This helps keep pond organization smooth when the unlock occurs.

  • Switch to ambient mode for a purely auditory session.
  • Play at different times to notice lighting variations.

05 / THE GUIDE

Time‑of‑Day Observation

Play at morning, noon, and evening within a single day. Write down lighting and sound changes, noting how each period alters the pond’s atmosphere.

  • Track milestone progress to anticipate new fish arrivals.
  • Plan pond space ahead of unlocks to avoid rearranging.

WATCH THE GAME

My Koi videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

Your reading checklist

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QUICK ANSWERS

My Koi FAQ

Can I play My Koi on operating systems other than Windows?

The official information lists Windows as the only supported platform; macOS and Linux are not mentioned.

Does My Koi contain any advertisements or in‑app purchases?

The description explicitly states the game has no in‑app purchases and no advertising.

Is there any multiplayer or online component in My Koi?

My Koi is described as a single‑player experience with family sharing, and no multiplayer features are documented.

More My Koi guides

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.