Prologue: Fish idle 2 is a free introduction to Fish Idle 2: Underwater Mystery, an idle fishing arcade about building a profitable Fish Kingdom. Fishing is automated when you approach fish, while you steer the boat to follow schools and avoid obstacles.
Upgrade fishing speed, storage, boat speed and defense, and rods that can cast multiple lines. The wider game description also highlights passive income from an Idle Fish Farm, hired ships that fish and deliver catches, and a Currency Exchange. The demo’s exact scope may differ.