Fish Sudoku Idle

About Fish Sudoku Idle

Play Fish Sudoku Idle, an original free Sudoku game with a growing cartoon aquarium. Solve a number puzzle, rescue a little ocean friend, and let your fish earn shells while you plan the next move. It is one connected puzzle-and-idle game, playable online in your browser without a game download. Start with a guided 4x4 Sudoku lesson: complete a row, check a column, then finish an outlined box. After the lesson, Pip the clownfish joins your reef and earns one shell per second. Choose 4x4 Sudoku for a quick beginner board, 6x6 Sudoku for a gentler step up, or a classic 9x9 board. Every generated puzzle has one solution and can be solved using single-candidate deductions. There is no countdown or lives system. Each completed board rescues another ocean friend and gives 30 shells on 4x4, 90 on 6x6 or 200 on 9x9. Collect Pip, Bubbles, Sunny, Mochi, Luna and Sprout. Each friend contributes one shell per second before upgrades. Spend shells on the coral nursery to raise the whole aquarium's income, or use a 20-shell hint when you get stuck. Notes and undo are free. This relaxing puzzle game combines Sudoku for beginners with an idle aquarium. Away earnings run at half your reef's current production rate for up to eight hours. Progress uses the FoolFish SDK: browser saving for guests and account saving when the platform enables it. Download a JSON backup from Save & settings before moving a guest reef to another device. Fish Sudoku Idle is a FoolFish Games title. Its fish are collectible aquarium characters; it is not a lesson in advanced Sudoku fish techniques such as X-Wing or Swordfish.