Sudoku reimagined as a tower climb on a life bar, solve a stack of grids floor by floor, and every misplaced digit chips away at your HP.
Was this fun?
How to play
Each floor is a sudoku grid: fill every row, column and 3x3 box with the digits 1 to 9, no repeats. The siege twist is a shared life bar, placing a digit that breaks the rules costs you HP. Clear a grid to ascend to the next floor, and push as high up the tower as your logic (and your health) will carry you.
Fill the grid so each row, column and box contains 1 to 9 once.
Wrong placements drain your HP, so deduce before you commit.
Solve a floor to climb to the next, tougher grid.
Game modes
Daily, a shared tower seeded the same for everyone each day.
Practice, endless seeded climbs at your own pace.
Controls
Desktop: click a cell and type a number, or use the on-screen number pad.
Phone & tablet: tap a cell then tap a number, fully touch playable.
Tips & strategy
Only place digits you've fully deduced, a guess that fails costs real HP here.
Use pencil-mark reasoning mentally on cells with two candidates before deciding.
Scan for forced singles each floor; they're free, safe progress that protects your life bar.
About Sudoku Siege
Sudoku Siege is an original free browser game that turns the classic public-domain number-placement puzzle into a survival tower climb, where a life bar rewards careful logic over guesswork.
A free, original browser game on PlayPendium. No download, no install.
