Koi Path: Idle Merge

Koi Path: Idle Merge is a relaxing yet addictive idle merge simulation game focused on koi fish breeding and racing. Create and expand your exclusive koi business from scratch, turning your pond into a profitable goldmine.

Release your koi into the race pond, and they will swim along the track automatically. Every time a koi reaches the finish line, you gain steady idle income. Obtain new koi by purchasing them directly or claiming free koi from gift boxes you collect in-game.

The core loop revolves around merging identical-tier koi. Combine two same-level fish to evolve them into a rarer, higher-grade koi variant. Higher-level koi swim faster and generate far more cash per race, greatly boosting your passive revenue.

Invest your accumulated profits in various upgrade bundles available in the shop. These powerful buffs accelerate your earnings, speed up koi spawning and race cycles, letting you scale your koi business much quicker.

No constant tapping or intensive operation required. The game runs automatically to generate income even when offline. Merge koi to unlock gorgeous rare varieties, optimize your pond layout, maximize your idle gains, and grow the most prosperous koi fish empire.