Blockdoku: Block Sudoku

Content rating
Everyone
1+
Downloads
Content rating
Everyone
Learn more
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About this game

Blockdoku is a relaxing block puzzle with a sudoku twist. Drag blocks onto the 9x9 grid and clear a whole row, a whole column, or a 3x3 box to score. Line up several clears at once for a big combo -- the more you clear in one move, the higher the multiplier.

Simple to learn, endlessly replayable. No timer, no pressure -- just you, the grid, and your best score.

HOW TO PLAY
You get three blocks at a time. Drag them anywhere they fit. Fill any full row, column or 3x3 box and it clears. When none of your three blocks fit, the game ends -- so plan ahead and keep space open.

FEATURES
- Classic 9x9 block sudoku -- clear rows, columns AND 3x3 boxes
- Satisfying combos: clear several lines at once for bonus points
- Endless play -- chase a new high score every run
- Daily Challenge: the same blocks for everyone each day, build a streak
- Fair by design -- you always get at least one block you can place
- Play offline, no account and no sign-up needed
- Clean, calm design with sound and haptics you can turn off

GOOD FOR
A quick brain break, a commute, or winding down at night. Blockdoku is easy to pick up and hard to put down.

Download Blockdoku free and beat your best.
Drop blocks to fill rows, columns and 3x3 boxes. Endless block sudoku puzzle.
Updated on
Jul 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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