Sudoku with chain reactions

Sudoku, set in motion.

Place one number and watch the board answer back. Trigger automatic finishes, build wild combos and solve every puzzle in as few moves as you can.

Classic logic. Arcade energy.

One move can wake up the whole grid.

Arcadoku keeps the rules you know and turns every obvious finish into momentum. Less waiting, more flow, and a new board ready when the last one is done.

Start a chain reaction

When a row, column or box has one empty cell left, Arcadoku completes it and can trigger the next finish.

Chase bigger combos

Build long cascades with punchy animation, sound and haptics. The board gets louder when your move gets smarter.

Stay in the flow

Finish a puzzle, enjoy a tiny pixel-art victory, and roll straight into a fresh board without a results screen breaking the rhythm.

A very unquiet Sudoku

Think carefully. Then let it explode.

Arcadoku guided Sudoku tutorial — Friendly from the first move

Cosmic Cascade combo in Arcadoku — Combos with real weight

Arcadoku number grid and arcade keyboard — Made for one more board

Your next move could be huge.

Play free on iPhone. Optional rewarded ads and purchases are available; the puzzle is always yours to solve.