Overview

Dive into the serene world of Tranquil Koi, a relaxing idle game developed and published by FroggySoggy. This title invites players to cultivate their own personal aquatic paradise, starting with a humble pond and gradually expanding it into a vibrant ecosystem.

Highlights

  • Over 100 Unique Koi Breeds: Collect, raise, and trade a dazzling array of koi, each with its own distinct appearance. The goal is to discover and nurture rare varieties, enriching your collection over time.
  • Customizable Pond Design: Beyond the fish, players can personalize their pond environment. A variety of plants, stones, and decorative ornaments are available to craft a truly unique and aesthetically pleasing aquatic haven.
    Idle Progression & Peaceful Atmosphere: Tranquil Koi* is designed for relaxation, featuring gentle animations and soothing sounds. The game progresses even when you're not actively playing, allowing your pond to flourish at its own pace.

Who It's For

This game is perfect for players seeking a calming and low-stress gaming experience. If you enjoy incremental games, creature collection, or simply want a peaceful escape to tend to a virtual garden, Tranquil Koi offers a delightful way to unwind. Its idle nature makes it ideal for those with limited playtime who still want to see their creations grow.

Game Info

Tranquil Koi is an incremental, creature collector, and idler game with a focus on nature and simulation elements. It also incorporates artificial intelligence, suggesting dynamic or evolving aspects within the pond ecosystem. The game supports multiple languages, including English and Japanese, and was released on November 12, 2025. It is a paid title available on Steam.