Stacktiles: Number Puzzle

Stacktiles is a number puzzle game built around one simple rule: every numbered cell needs a line, and every line needs to fit. Drag a line out from each numbered cell — the number on it is the exact length that line has to travel, no more, no less. Pack every cell with a line, beat the clock, and the board is yours.

How to play
- Tap a numbered cell and drag a line out from it.
- Each cell's number sets the exact length of its line — no more, no less.
- A finished line blocks every other line from crossing it, even a second line of its own colour.
- Route around bridges and colour-shifting cells where a board uses them.
- Cover every cell on the board before the clock runs out.

The twist: for every board there is exactly one arrangement of lines that fits. Get one length wrong, or let a line box itself in, and the puzzle won't clear — so this isn't a game you solve one move at a time. Read the whole board first, plan every line's route, then commit. Some boards add bridges and colour-shifting cells for an extra layer of planning. A number puzzle that rewards patience as much as speed.

Stacktiles packs a full number puzzle game into every board:
✓ Numbered cells, exact-length lines
✓ Only one correct line-up per board
✓ Own-colour lines block themselves too
✓ Bridges and colour-shifting cells
✓ Fully offline — no wifi, no signal
✓ New boards added regularly

If you like numberlink, connect-the-dots, sudoku, or block puzzle games, Stacktiles is built for you — it borrows the "fill every cell" satisfaction of a block puzzle game and the "exactly one answer" logic of a numberlink or sudoku puzzle, then adds a clock. Every level of this number puzzle game runs on a countdown, so it's part logic, part speed: scan the board, plan your lines, and commit before time runs out. Whichever you're coming from, the goal is the same: read the board, find the one line-up that fits, and clear it before the clock runs out.

Play Stacktiles completely offline, anywhere — no wifi, no signal, no problem. Load it up on a commute, a flight, or a slow connection and jump straight into a puzzle game, connection or not.

New boards keep arriving, so there's always another one waiting once you've packed the last. If you've cleared every numberlink and every sudoku grid you can find, Stacktiles is the next board to sit down with.

Download Stacktiles: Number Puzzle now and see how fast you can pack the board.