About Cat Stack
Cat Stack is a cute physics game about building the tallest possible tower of cats. Move the next cat left or right, let go, and watch it land on the pile. Every cat is a real physics body with its own shape and weight, so the tower wobbles, leans and settles in a different way every time.
You will meet tiny kittens, bread-shaped loaf cats, chunky chonks, extra-long cats, tuxedo cats, round ball cats and elegant Siamese. Flat, heavy cats make a good base, while round ones love to roll off the edge. The game ends when cats tumble off the platform, so the trick is patience: let the pile settle, keep it centered and pick your drop spot carefully. Your best height is saved so you can try to beat it.
How to play Cat Stack
- Move the cat left or right, then release to drop it onto the pile.
- Each cat has a different shape and weight.
- Build the tower as high as you can without cats falling off.
Features
- Real physics: every cat has its own shape and weight
- Seven kinds of cats, from kittens to chonks
- Simple drag-and-drop controls
- Endless play with a saved best height
- Plays on phones and desktop
Tips and tricks
- Drop heavy, flat cats low and round cats on top of flat ones.
- Keep the tower centered on the platform.
- Wait for the pile to settle before dropping the next cat.
Cat Stack FAQ
Is Cat Stack a physics game?
Yes. Every cat is a real physics body, so balance and weight matter.
What ends the game?
The game ends when cats fall off the platform.
Is Cat Stack free to play?
Yes. Cat Stack is completely free and runs in your web browser. There is nothing to download and no account to create.
Can I play Cat Stack on my phone?
Yes. Cat Stack is designed for phones first (portrait, one hand) and also works on tablets and desktop computers with a mouse.
Is my progress saved?
Your best score is saved in your browser on this device (local storage). Clearing your browser data resets it.















