Idle Fishing is an addictive idle game where you collect and merge fish to create new species. The goal is to become a fishing tycoon by generating revenue from your fish tank. As you progress, the price for new fish increases, and you'll need to strategically merge the same fish to create bigger and more valuable species. In this guide, we'll cover the basics of Idle Fishing, provide tips and tricks, and explore related games like Idle Fish 2 and Hooked Inc.