Core rules

The board is 12 columns wide. Stack the falling blocks and line them up into squares.

  1. Squares of 4×4 or larger clear

    Block colour is irrelevant. Whenever any part of the board fills a square of 4×4 or larger, that whole square clears. The largest possible is 12×12.

  2. Bigger squares score more

    The more blocks you clear at once, the more you score, and bigger squares climb faster.

  3. Chains become combos

    When a square clears, the blocks above it fall. If they land in a new square, the chain continues. Each combo raises your score multiplier, and that multiplier never drops for the rest of the run.

  4. The run ends when time runs out

    You start with 120 seconds and the clock counts down constantly. Clearing squares adds time back, so the longer you keep clearing, the longer you play.

  5. Stacking too high also ends the run

    If blocks pile up until a new one can no longer enter the board, the game is over. Keep the stack under control.

Controls

Three gestures, playable one-handed.

Swipe left, right, or down

Moves the block. Horizontal and downward input are handled independently, so you can drop and slide sideways in the same motion.

Tap

Rotates the block 90 degrees. Line it up with the shape you are trying to complete.

Flick up

Hard drop. The block falls straight to the bottom, which saves you the time it would spend descending.

How the clock works

You start with 120 seconds and it never stops running.

Clearing a square winds it back, and bigger squares give more. But only the first clear of a chain adds time. Later ones add none.

The timer switches to a warning colour when you are running low.

Using Hold

Hold parks a block you do not want right now. Tap the hold box on screen to use it.

Read next

Just start playing

There is a tutorial in the app, so you do not have to read anything first.