About Tower Stack
A new floor slides from side to side on a rope, and one tap drops it onto the house. Whatever hangs over the edge breaks off, while a perfect drop snaps neatly into place. Floor by floor the tower grows, until the finished house gets a roof and a waving flag.
How to play
- Watch the floor slide back and forth above the house.
- Tap anywhere to drop it right on top of the floor below.
- On a computer, press the space bar, Enter, the down arrow or S.
What your child practices
- Good timing
- Lining things up
- Patience and focus
How it grows with your child

TinyAges 2-4
Eight wide, slow floors that always land on the house.

LittleAges 4-6
Eleven floors that swing a bit wider and speed up slowly.

YoungAges 6-8
Fifteen floors that sweep across the screen. A perfect drop wins some width back.

Big KidsAges 8-11
Twenty-two fast floors that can shrink to a thin sliver, so every drop counts.

Play together
Stack blocks or cups together and talk about why a straight tower stays up while a wobbly one tips over.
