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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.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
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.
Lowest tracked price: PLN 13.49 (Jul 7, 2026) · current best: PLN 13.49.
71% positive reviews all-time.
Right now the cheapest offer for Tranquil Koi 鯉の池 is PLN 13.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Tranquil Koi 鯉の池 is PLN 13.49 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Tranquil Koi 鯉の池 drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
