# Cryptid Aquarium — Nysterious creatures.

> Collect, breed, and train mysterious creatures in a virtual aquarium game. (iPhone/iPad app by Ryota Kikuchi.)

- Source: https://appshunter.io/ios/app/cryptid-aquarium/id1522819775 (this page in markdown: same URL + `.md`)
- Developer: [Ryota Kikuchi](https://appshunter.io/developer/871799640)
- Category: Games, Entertainment, Family, Simulation
- Price: Free with in-app purchases
- Rating: 4.90/5 from 246 App Store ratings · 70 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.2 · 78 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2021-07-31
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/cryptid-aquarium/id1522819775/reviews.md

## What is Cryptid Aquarium?

The latest in the aquarium series with a total of 3 million downloads. An insane game filled mystery.
Feed your creatures and they will multiply. Collect all kinds of creatures.
Fish! Animals! Plants! Mushrooms! All kinds of cute creatures!
 
Train the creatures you catch and have them participate in sports competitions (races, swimming). Aim for the top in the rankings.
Easy to use and perfect for killing time! Breed your creatures free-range! You can also mass-produce creatures by building up your farm!

## Key features

- Collect diverse creatures
- Feed and breed creatures
- Train creatures for sports
- Compete in rankings
- Build creature farms
- Free-range breeding

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ルビーx1 | $0.99 | one-time |
| ルビーx6 | $3.99 | one-time |
| ルビーx52 | $26.99 | one-time |
| lights | $1.99 | one-time |
| Light | $1.99 | one-time |


## Recent user reviews (10 of 70)

All indexed reviews: https://appshunter.io/ios/app/cryptid-aquarium/id1522819775/reviews.md

### 5/5 — We need a sequel

*2026-06-04*

Ah yes, raising weird creatures that have the faces of middle aged salary men

### 5/5 — Childhood game

*2026-05-14*

I love this game. It’s one of my favorite ones growing up. It’d be really awesome if the bug when you try to see the hints for an undiscovered creature would be fixed. It crashes the game completely!!! I love you🙈

### 5/5 — Weird but awsome

*2026-05-05*

Cryptid aquarium is SO weird…but I love it somehow. It’s feels calming sometimes, and I like the creatures. I got a rock guy! So this game is 
a MUST try. You’ll love this game, trust me.

### 5/5 — Loving It!

*2026-04-20*

I have been playing the first version and this one is really a update! I really enjoy the humor!

### 5/5 — 굿

*2026-02-11*

너무 재밌어요.. 도감 보는 재미도 있고.. 그런데 애들 건강도가 꽝인데 이건 어떻게 해결해야ㅜ하나요ㅜ

### 5/5 — actually really good

*2025-12-28, version 0.0.26*

I didn’t expect this game to be good at all but genuinely it’s actually really entertaining and I love my creatures, i felt so incredibly sad when some of them died because i forgot to open the game for a bit, but it’s really fun and i recommend it thoroughly

### 5/5 — 面白い。

*2025-08-16*

とっても楽しくて最近はずっとやってしまいます。
滝に当たり判定がないせいで内部にオヤジや広告宝箱が入り込んでしまう点や、
雪山側…左奥側がなんか…水槽の壁判定がないのか、常に何匹か脱走してるのがちょっと違和感ですが。
あと、音楽系アプリとの併用が出来なくて、優先度の高いアプリでもダメだったんでYouTube並のシャットアウト能力だなぁと。寂しい。
でもとにかく楽しいですね。
色々育ててますが、シメジオヤジの気持ち悪さが半端じゃなくてお気に入りです。

### 4/5 — すごく愛着が湧く

*2025-08-05*

すごくみんなが色々な動きや
色、形があってすごく良い、
オヤジからお礼を貰って心が暖かくなります！ダイヤ？も結構早く溜まって何か買ったり水槽広げてたり、デコレーションしたり、餌を食べてるオヤジも可愛くてそこの面ではすごく大満足です！
ですが、宝箱を開けるのに広告を見るのですが、
そこの広告が少し長いかなーと感じてしまいます😕
3Dだしそうなってしまうのは分かりますが、、、
その広告が同じ動画を2回ながれるのはすこし嫌です🤔
違う広告だと良くなるかなーと思います。
個人の意見ですが、、、、
長文読んでいただいてありがとうございます‼︎

### 5/5 — 最高

*2025-07-31*

癒しすぎる。どんどん親父が増えていっていて，今まで親父ゲームやってきて，これが一番楽しかった。でも，レベルが上がるにつれて，遊具や備品が高くなるのが，ちょっと勿体無いかもしれません！だから，可愛いおじさんがどんどん成長していくのを命懸けで出来る人はピッタリだと思います(www)

### 5/5 — Honestly - Charming

*2025-06-21, version 0.0.26*

I love this so much!! The weird creatures are so fun to discover, I only wish there were more customization options - and making gems easier to collect? But, there's also a charm to discovering gifts worth more, and making an effort pays off.

My only real ask is there be more dialogue and special interactions of the cryptids!

But otherwise, no major additional features are needed! This just needs a few bug fixes. Some crash the game.

## Frequently asked questions about Cryptid Aquarium

### What is Cryptid Aquarium?

Cryptid Aquarium is a game where you collect, feed, and breed a variety of mysterious creatures. You can train them for sports competitions and aim for high rankings. The game is designed to be easy to use and perfect for passing time.

### How do I collect creatures?

You can collect various creatures by feeding them, which causes them to multiply. The game features a wide array of creatures, including fish, animals, plants, and mushrooms, all described as cute.

### Can I compete with my creatures?

Yes, you can train the creatures you catch and have them participate in sports competitions such as races and swimming. The goal is to aim for the top in the rankings.

### Is Cryptid Aquarium free to play?

The game is free to play, but it does offer in-app purchases and contains ads. You can breed your creatures free-range and also mass-produce them by building up your farm.

### What platforms is Cryptid Aquarium available on?

While specific platforms are not mentioned, it is described as a mobile application, implying availability on iOS and Android devices.

## Version history (last 5 releases)

### 0.0.26 — 2023-08-16

minor bug fix

### 0.0.23 — 2022-07-05

ver23:
bug fix:
parameter fix:

### 0.0.22 — 2021-11-18

bug fix
parameter fix

### 0.0.21 — 2021-11-17

bug fix.

### 1.13 — 2021-10-31

fix sdk version

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## More apps by Ryota Kikuchi

- [新オヤジリウム](https://appshunter.io/ios/app/id1190024788)
- [Cats and Sharks](https://appshunter.io/ios/app/cats-and-sharks/id1348682413)
- [Weird Aquarium](https://appshunter.io/ios/app/weird-aquarium/id1434664247)
- [ゴブリン水槽](https://appshunter.io/ios/app/id1465561012)
- [Roman war: Remastered](https://appshunter.io/ios/app/roman-war-remastered/id1620827332)

All apps by Ryota Kikuchi: https://appshunter.io/developer/871799640

## Related topics

[weird aquarium](https://appshunter.io/ios/topics/weird-aquarium) · [育成](https://appshunter.io/ios/topics/育成)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*