ラッコの海:育てて学ぶ癒しの保全育成
Shinmei Simulation Contains ads
A relaxing idle-raising game for adults where you can leisurely watch over sea otters. Learn about using tools like cracking shells with stones and exploring kelp forests while you raise your otter in this free game.
- Downloads
- 24+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 18
- 2026 · v1.0.1
Screenshots
About ラッコの海:育てて学ぶ癒しの保全育成
No complicated controls are required. Just feed it and watch. Then, simply watch the sea otter floating on the surface of the sea, and it will grow bigger over time. It's perfect for taking a break from work or for a moment of relaxation before bed.
■ Features of this game
- Idle-raising: Raise a sea otter floating on the surface of the sea
- Simple care: just feed it and watch it
- Depicts the otter's skillful use of tools like cracking shells with stones and its dexterous front paws
- Grows over time even when the app is closed
- Relaxing ocean scenery: kelp forests, waves, light reflections...
- Name it and make it your one-of-a-kind companion
■ Discover the world of sea otters by raising them
Sea otters are the largest marine mammals in the weasel family. With their dense, shaggy fur, these rare wild animals live in cold seas and use tools (stones) to crack open shellfish.
Their population was once drastically reduced due to overhunting for their fur, and they are still listed as Endangered (EN) on the IUCN Red List. They are also a "keystone species" that protects kelp forests; their presence prevents sea urchins from overpopulating, thus maintaining a rich marine environment.
• One of the densest furs among animals
• Uses stones on their stomachs to crack open shellfish
• A vital part of the marine ecosystem, protecting kelp forests
In this game, you will learn about the ecology of sea otters and their important role in the marine ecosystem while caring for them.
■ Points of Relaxation
- The leisurely movements of the floating sea otters
- Completely free (no in-app purchases)
- Video ads may be displayed (they play occasionally between care sessions)
- No account registration or collection of personal information
- Offline play without internet connection
- Relaxing with the sound of waves as background music
■ Recommended for:
- Those who love sea otters and marine mammals
- Those who love aquariums and marine life
- Those who want to relax with a relaxing, idle game
- Those who want to learn about endangered species and the environment while playing
If you run out of food, the sea otters will lose their energy, so be sure to check on them once a day.
Recommended age: 13 years and older
What’s new
Version 1.0.1 · Updated August 18, 2026
広告のタイミングが分かりやすくなりました。 ■ お世話ボタンに「広告」バッジを表示 (次に押すと広告が流れるとき) ■ 広告は 15分に1回だけ (連発しません)
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| ラッコの海:育てて学ぶ癒しの保全育成 | – | Free | 10+ | Aug 18, 2026 | |
| Ocean -The place in your heart | 4.1 / 5 | Free | 500,000+ | Oct 17, 2025 | Compare |
| Wooparoo Odyssey-Build & Breed | 4.2 / 5 | Free | 100,000+ | Sep 30, 2026 | Compare |
| Idle Cat Empire: Tycoon Games | 4.4 / 5 | Free | 100,000+ | Jul 29, 2026 | Compare |
| Abyssrium The Classic | 4.1 / 5 | Free | 100,000+ | – | Compare |
| RPG Blood of Calamity | 4.6 / 5 | 7.99 USD | 10,000+ | Aug 17, 2026 | Compare |
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