Free · Aim, drop, and stack eight blocks

3D Block Tower Builder for Kids

Move the guide, drop eight chunky blocks, and see how high your steady 3D tower can grow.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup

Friendly 3D physics

3D block tower

Move the drop guide, add eight blocks, and build the tallest steady tower you can.

Blocks 0/8 Moves 0 Time 55s Opening lab
Use left and right to line up each block. A steady block adds one tower point.Use left and right, A and D, touch, or the large controls. Space launches.

Runs only in this tab with cannon-es. No login, leaderboard, chat, ads, uploads, or saved player profile.

Powered by cannon-es, an open-source library available under MIT.

Three simple steps

How to use it

  1. Choose an easy, medium, or quick speed and press the large start button.
  2. Use the large controls, keyboard, or touch to aim and start each physics move.
  3. Pause or reset anytime. The 3D physics stays private in this browser tab.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.