Koi: A Tranquil Journey of Purification

9/12/2026, 8:35:01 AM

Release date: 2/22/2019

Tags: #indie #casual #adventure #great-soundtrack

User Reviews

Score: 82%Very Positive
Review Count: 167 reviews
Fetched At: 9/12/2026, 8:35:02 AM

Reference prices

Japan

¥ 135 (JPY)

Steam JP

$0.99 (USD)

Steam

Live Store Snapshot

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Japan Price: ¥ 135
Global Price: $0.99
Price in Your Region: ¥ 135Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 16 Sept 2026
Sale Status: Regular pricing
Price Checked At: 9/12/2026, 8:30:10 AM

Key highlight

Embark on a tranquil, introspective journey as a lone koi fish tasked with purifying polluted waters through eight artfully rendered stages. Developed by Dotoyou Games, this indie adventure offers a unique perspective an

Who this is for

A serene and visually beautiful adventure game that addresses environmental themes while offering players a calming and healing experience. Its unique controls and art style make it recommended for those looking to relax and play.

Details

Overview

KOI invites players into a serene and introspective adventure, casting them as a lone koi fish tasked with a vital mission. Separated from its owner, this solitary creature is the last hope for restoring polluted waters tainted by human activity. The game challenges you to guide the koi through eight distinct, artfully crafted stages, venturing from murky depths to enchanting underwater realms.

Highlights

A Unique Perspective: Experience the world through the eyes of a koi fish on a quest to purify its environment.
Artistic Environments: Explore eight beautifully rendered stages, each offering a unique visual journey through aquatic landscapes.
Engaging Gameplay: Navigate through diverse waterscapes, undertaking a mission of ecological restoration.

Who It's For

This game is perfect for players seeking a relaxing, contemplative experience. If you enjoy indie titles with a strong artistic vision, a calming atmosphere, and a meaningful narrative, KOI offers a unique and engaging adventure.

Game Info

Developed and published by Dotoyou Games, KOI is a paid title released on February 22, 2019. It supports multiple languages, including English and Japanese, and features Steam Achievements, Steam Cloud, and Remote Play on TV. The game is tagged with Indie, Casual, Adventure, and Great Soundtrack, reflecting its core appeal.