Marimo · 毬藻

A moss ball of your own

In Japan a marimo is given as a charm. Marimoshi puts one in a living aquarium in your pocket — clean water, light, food, love. Four small things a day, and it grows with you.

iPhone · Free · No in-app purchases

Marimoshi

A quiet aquarium, all day long

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A moss ball of your own — In Japan, a moss ball is given as a charm.
A living aquarium — Light drifts, water breathes, all day long.
Four small things a day — Clean water, light, food, love. A minute is enough.
It keeps your hours — Morning, dusk, night — the tank follows the real sky.
See how you're doing — Fourteen days of care in one quiet chart.
A wish only you know — It stays on your device for seven days. Nobody reads it.
Speaks five languages — English, Türkçe, Deutsch, Español, 日本語

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What it does

Four small things a day

Clean water, light, food and love. Each one has its own tile, and a minute is enough to top them all up.

It keeps your hours

The tank follows the real clock. The lamp comes on in the morning, goes off at night, and the water changes with it.

A wish only you know

Write a wish and your marimoshi holds it for seven days of good care. It never reads it, never repeats it, and the text never leaves your device.

A card every morning

When your care is going well, a card is waiting for you each morning — drawn from your moss ball’s mood, the season and your days together. For entertainment only.

Pass one on

Every seven days of care you earn a sprout. Sprouts can’t be kept — they are only ever given to someone else.

Speaks five languages

Türkçe, English, Deutsch, Español and 日本語, following your device or whichever you pick.

It never dies

Forget about it for a few days and your marimoshi turns pale, its wish stops moving forward and no card opens in the morning. That is the whole penalty. Come back, and it comes back too.

What is a marimo?

A marimo is a real thing: a ball of green algae that rolls slowly along the floor of a few cold lakes. The famous ones live in Lake Akan in Hokkaidō, where they have been a protected Special Natural Monument since 1952 and are celebrated with a festival every autumn. They grow about five millimetres a year — which is to say, almost not at all. In Japan they are given as a charm, to keep.

Marimoshi is for entertainment purposes only.

Download on the App Store

iPhone · Free · No in-app purchases