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Tranquil Koi 鯉の池 header art

Tranquil Koi 鯉の池

Tranquil Koi is a relaxing idle game. Start with a humble pond and transform it into a breathtaking koi paradise! Buy and unlock over 100 vibrant breeds, raise them and sell them to grow your aquatic haven. Unlock decorations to design an aquarium that reflects your vision of tranquility.

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Release
November 11, 2025
264 days ago
Steam Reviews
7 user reviews7 reviews71.4%

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Search Google: Who developed Tranquil Koi 鯉の池?Developer scaleThe operating scale of the game's developer.
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Search Google: Who controls the creative direction and IP for Tranquil Koi 鯉の池 and FroggySoggy?Creative controlWho appears to retain creative control of the game.
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About the Game

Build your dream koi pond in Tranquil Koi, a relaxing idle game.
Start with a single pond and fill it with over 100 stunning koi breeds.
Raise them, sell them, and unlock rare varieties to grow your collection.
Decorate with plants, stones, and ornaments to design your perfect aquatic haven.

  • 🐟 100+ Unique Koi – Collect, raise, and trade vibrant breeds.

  • 🌿 Customizable Ponds – Design with decorations and ornaments.

  • 💧 Idle Progression – Your pond grows even while you’re away.

  • 🎵 Peaceful Atmosphere – Gentle animations and soothing sound.

Create a sanctuary, collect them all, and let the ripples carry your worries away.