Content rating
Rated for 3+
10+
Downloads
Content rating
Rated for 3+
Learn more
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About this game

"A nation of humans has sunk into the sea.

We can still gather evidence that a human nation once existed there.
However, over time, such historical data will decay and be lost forever.

What we want you to do is to pick up that data before it's lost, convert it into a format we can understand, and share it with us to help us understand humanity.

However, please be careful.

Your body is fragile and will crumble if you touch anything other than data.

This is a dangerous journey.

But we hope that at the end of your journey, you will bring back information important to our future."


You play as a whale exploring a fictional human nation sunken to the bottom of the sea.

It's not a real nation, and it's not a real event.

But perhaps it is a nation of possibilities that may exist somewhere.

I hope you can feel something through this adventure.
Updated on
Nov 30, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

Added Google Play authentication
Content rating
Rated for 3+
Learn more

App support

About the developer
湯浅 康司
studio.wonderer@gmail.com
湊町1丁目1−33 今治市, 愛媛県 794-0003 Japan