Aquarium King:Fish Tycoon

Aquarium King:Fish Tycoon

idle fishing io in ocean farm!

1 ratings
34 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • October 14, 2022
  • December 17, 2025

Features

Aquarium King:Fish Tycoon screenshot #1 for iPhone
Aquarium King:Fish Tycoon screenshot #2 for iPhone
Aquarium King:Fish Tycoon screenshot #3 for iPhone
Aquarium King:Fish Tycoon screenshot #4 for iPhone
Aquarium King:Fish Tycoon screenshot #5 for iPhone
Aquarium King:Fish Tycoon screenshot #6 for iPhone
Aquarium King:Fish Tycoon screenshot #7 for iPhone
Aquarium King:Fish Tycoon screenshot #8 for iPhone
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About

Build and manage a vibrant underwater empire by collecting and nurturing adorable fish. Customize colorful aquariums, engage in exciting fish battles with unique weapons, and earn idle income to expand your business and become a fish farming tycoon.

Collect and nurture unique fish species
Customize and decorate colorful aquariums
Engage in Fish Arena battles with weapons
Earn idle income from fish and algae
Unlock new fish tanks and upgrades
Discover fun and quirky fish designs
Show original description

What's New in Aquarium King

3.19

December 17, 2025

fix some bugs;

9

In-App Purchases

$1.99

Starter Pack

This is a Starter Pack.

User reviews

イライラする

水槽の画面に行きたいのに、課金の画面から動かないことが多くて面白くない

………..

재밌긴 한데 물고기 종류도 너무 없고 요즘 잘 안해요. 좀 더 재밌게 만들어 주시면 저 이 게임만 계속 할 것 같아여근데 레벨이 너무 많이 필요해요. 100 레벨이 넘는.물고기도 있어서 아직6레벨 밖에 안 돼요.그래가지고 요즘은 잘 안합니다. 깔지 마세요.

暇な時に!

楽しい!

알 언제 낳아요?

ㅅㅂ이거 알 존나안주네

重複しており申し訳ございません。

お世話になっております。

バグなのか操作なのかは分かりかねますが、レベルが明らかに下がっています。

言葉崩れますが、普通に考えておかしいです。
こちらは時間を使っています。

お金(ポイント)が絡んでいる以上、対応がなければ、こちらも然るべき対応をさせていただきます。

本社の方にも問い合わせさせていただきます。

Developer apps

FAQ

What is Aquarium King?

Aquarium King is a 3D cartoon idle mobile game where you collect, nurture, and breed fish to build a flourishing aquarium empire. You can customize your aquariums, earn idle income, and even battle your fish in the Fish Arena.

What are the main features of Aquarium King?

Key features include collecting unique fish species, customizing aquariums with decorations, engaging in Fish Arena battles with special weapons, earning idle income through algae production, and upgrading your factory and boosters to expand your wealth.

Is Aquarium King free to play?

Yes, the game is free to download and play. It offers in-app purchases for items and features that can enhance your gameplay experience and speed up your progress.

What kind of fish can I collect in Aquarium King?

You can discover and collect a wide variety of fun and quirky fish, including unique designs like taco fish and rocket fish. Each fish species can be found in different, unlockable fish tanks.

How do I earn coins in Aquarium King?

Coins are primarily earned through idle income. Algae produce oxygen, which your fish collect to fill oxygen tanks, generating income. You can then use these coins to upgrade your gear, unlock new fish, and speed up profits.