Create a thriving Koi empire in Idle Koi Pond! Merge Koi fish to unlock new varieties, boost your earnings, and watch your business flourish. Release them into the pond, maximize profits, and climb the global leaderboard. Enjoy seamless upgrades and engaging idle gameplay that keeps you coming back for more. idle koi pond, koi fish, merge games, idle games, aquarium, fish, profitability, global leaderboard, relaxing gameplay, casual gaming, business simulation, idle empire, koi collection, video game, mobile game