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Game guide

Fat Fish → — The basic loop

Fat Fish 🦐 → 🐡 [🏗️]
Gnarcade, Playing 151, Rating 77.8%
Creator Gnarcade
Playing 151
Rating 77.8%
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About

Overview

Fat Fish is a deep-sea fishing game where you cast a hook, catch fish on the way up, and either sell them or add them to your aquarium. There are 77 fish to collect in total.

What is on this page

Contents
01

The basic loop

Step

The whole game runs on a simple cycle you repeat each time you go out.

  1. Cast your hook drop it deep into the sea and wait for fish to appear on the way back up.
  2. Catch fish time your grab as they swim past while the hook rises.
  3. Decide what to do sell a fish for money, or add it to your aquarium to fill your collection.
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02

Fishing tips

Tips

A few small techniques make a noticeable difference.

Tips worth knowing
  • Hold to reel up faster — this also makes it easier to aim at fish that are swimming side to side.
  • Upgrade your fishing pole so your hook can reach deeper water, where rarer fish live.
  • Rare, fatter fish are found deeper.
  • Hook chests when they come up — they contain the rarest fish in the game.
  • Upgrade your boat to carry more fish per trip and move faster.
03

Selling fish versus keeping them

Table

Every fish you catch puts you at a decision point.

Sellinggives you money, with rarer fish fetching higher prices from customers.
Adding to aquariumfills your collection toward the 77-fish goal and unlocks pets.
Pets from your aquariuma fish you assign as a pet follows you and collects money on your behalf.
04

Aquarium, pets, and chests

Summary

Fish you add to your aquarium can work for you, and chests give you a shot at rare fish.

  • Aquarium holds the fish you choose to keep instead of sell, building toward your 77-fish collection.
  • Pets any fish in your aquarium can be chosen as a pet that follows you and gathers money.
  • Chests special items that appear on the hook, containing some of the rarest fish available.
  • Customer income rarer fish in your aquarium attract higher payments from customers.

Glossary

Glossary
Hook
The fishing tool you cast into the deep sea to bring fish back up.
Aquarium
The place where you store caught fish instead of selling them, used to build your collection and choose pets.
Pet
A fish you select from your aquarium that follows your character and collects money for you.
Chest
A special item that attaches to your hook during a cast and contains some of the rarest fish in the game.

Common questions

FAQ

How do I catch rarer fish?

Rare fish live deeper in the sea, so upgrading your fishing pole is the most direct way to reach them. Hooking chests also gives you access to the rarest catches.

How do I get a pet?

Add a fish to your aquarium first, then select it as your pet. The chosen fish will follow your character and collect money as you play.

What does upgrading my boat do?

A better boat lets you carry more fish in a single trip and moves faster.

Updated Oct 13, 2026
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Fat Fish 🦐 → 🐡 [🏗️] Gnarcade, Playing 151, Rating 77.8%
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