Free · Roll five marbles with gravity

3D Marble Ramp Race for Kids

Release bright marbles one at a time and watch real 3D gravity carry them down a long ramp.

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

Friendly 3D physics

3D marble ramp race

Release five bright marbles and watch gravity carry them down the long ramp.

Marbles 0/5 Moves 0 Time 45s Opening lab
Drop one marble at a time. Each marble that crosses the gold line earns a point.Tap the view or use the large action button. Space also works.

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.