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Fish Game official game artwork

THE PRACTICAL GUIDE

Fish Game Guide

Fish Game is a detailed and highly “sofishticated” freshwater aquarium simulator, lovingly crafted *by* enthusiasts *for* enthusiasts! Featuring fish with personalities and dynamic relationships, water quality

Steam ↗Windows
GameWiki Pro EditorialReviewed 5 guide topics

GET YOUR BEARINGS

Plan your next Fish Game session

Our independent guide walks you through the documented systems of Fish Game—fish behavior, plant growth, tank scaling, chemistry, and visual sharing—so you can build balanced aquariums while understanding how each element influences the next.

01 / THE GUIDE

Compare Social Hierarchies

Select two fish with contrasting personalities and observe how their interactions shape the hierarchy. Note schooling or fighting patterns and relate them to the number of individuals present.

  • Watch early interactions to anticipate which fish may dominate the hierarchy.
  • Match food types to dietary groups to keep fish healthy and reduce conflict.

02 / THE GUIDE

Plant Growth Rate Test

Plant a fast‑growing species alongside a slower one. Record growth over several in‑game days, then compare how each affects CO₂ and oxygen levels.

  • Start with fast‑growing species to see visual changes quickly.
  • Monitor CO₂ levels when adding many plants to maintain balance.
Fish Game official gameplay screenshot
Publisher-provided gameplay image · A Shell in the Pit Games, Creative Ink Games

03 / THE GUIDE

Tank Size Impact

Upgrade from a 7‑gallon to a larger tank and add the same fish school. Observe changes in space usage, hierarchy stability, and substrate layering needs.

  • Plan substrate layers before expanding to avoid re‑arranging later.
  • Use larger tanks to introduce species that need more space, such as schooling fish.

04 / THE GUIDE

Water Parameter Balancing

Introduce a new predator and monitor ammonia spikes. Adjust lighting and plant count to restore balance, noting how each parameter reacts.

  • Keep an eye on ammonia spikes after adding new fish.
  • Adjust lighting to support plant photosynthesis while managing oxygen.

05 / THE GUIDE

Photo Mode Composition

Create a dolly shot that moves from foreground rocks to background plants. Compare the visual impact with a static shot, focusing on depth cues and fish placement.

  • Use the dolly shot feature to highlight depth and plant layers.
  • Enter community contests to see how others frame similar setups.

WATCH THE GAME

Fish Game 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

Fish Game FAQ

Can I play Fish Game on a Steam Deck?

Yes, the game is listed as playable on the Steam Deck, allowing the full experience on that handheld device.

Does Fish Game support saving progress across multiple Windows PCs?

Steam Cloud is included, which synchronizes saved data between supported Windows installations.

Is there a mode that prevents fish from dying?

A relaxing “No Death Mode” is provided, letting you build aquariums without mortality concerns.

More Fish Game 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 2026-10-23. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.