By Hey, Good Game

Play Killer Sudoku

Killer Sudoku combines classic Sudoku with the arithmetic of Kakuro. Fill the grid so every row, column, and box contains each digit exactly once — while the digits inside each dotted cage add up to the cage's target sum, with no repeats. Play a fresh daily puzzle or unlimited puzzles across five difficulty levels, from Easy to Expert, plus a quick 6x6 Mini mode.

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How to Play Killer Sudoku — Rules, Cages, and Your First Solve

The three rules of Killer Sudoku, what cages actually tell you, and a complete beginner solve walked through grid by grid. No guessing required — ever.

About Us

We're Hey, Good Game, a tiny game studio that builds and buys daily games, for good. We believe brainy games can impact your life in a positive and healthy way, and we're dedicated to creating a premium game experience across platforms.

Learn more about us, and please reach out if you have a game to sell. We have a streamlined process that treats game caretakers fairly.

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How to Play Killer Sudoku — Rules, Cages, and Your First Solve

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