Numberblocks Playground
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Numberblocks Playground

Build and play in a free 3D Numberblocks Playground. Place characters, explore scenes, try Physics Toys, combine numbers, and save your creations.

Start PlayingCreate Numberblock

Runs in your browser. Saved scenes and characters stay on this device unless you export or share them.

Create

Build and Customize Characters

Build a Numberblock from any whole number, choose its shape and appearance, then place it in the 3D Playground.

Make Numberblock 10Make Numberblock 20Make Numberblock 50Make Numberblock 100Make Numberblock 1000

3D builder preview

See the 3D builder in action

Build a scene, then make every Numberblock feel like your own.

Several colorful 3D Numberblock characters in a scene beside the Create panel.Create a scene
A blue Numberblock 20 with a crown and sparkle face selected in the Customize panel.Choose a face
Numberblock 22 with the Metallic material selected in the Customize panel.Pick a material

Try different shapes

  • Make Numberblock 12 as a rectangle
  • Make Numberblock 16 as a square
  • Make Numberblock 25 as a 5 x 5 block
  • Make Numberblock 100 as a tall tower
  • Make Numberblock 1000 as a cube-style model

Physics Toys

Experiment with Physics Toys

Bring your creations into Numberblocks Playground and experiment with Rocket, Black Hole, Tornado, Zero Gravity, and more. Push, pull, spin, float, and launch characters in the same saved scene.

Rocket

Fit a Rocket, then launch a Numberblock from the Physics panel and guide its flight in the playground.

Numberblock 10 flying with two rocket boosters in the Numberblocks Playground.

Black Hole

Place a Black Hole in the scene, watch nearby Numberblocks curve inward, then release them when you are ready.

A busy Numberblocks scene with a Black Hole field and its release controls.

Tornado

Create a spinning Tornado that lifts Numberblocks from the ground before sending them back into the scene.

3D Numberblock characters lifted by the Tornado Physics Toy.

Zero Gravity

Switch on Zero Gravity to let the whole scene float, then return to ordinary physics whenever you want.

3D Numberblock characters floating in Zero Gravity in the Numberblocks Playground.

How It Works

Play in the 3D Playground

Place characters, move around the scene, try actions and Physics Toys, then combine or split numbers as you explore. Your work stays in the browser while you play.

Combine, Split and Explore Numbers

Add multiple characters to the scene, select them to form a new number, or split one into smaller parts. Each number stays visible while you explore the relationships between them.

Use the Play actions to jump, dance, celebrate, fall apart, rebuild, and try other simple interactions.

  • Combine selected characters into a new number.
  • Split a character into two values that add up to the original.
  • Use camera pan, zoom, and touch-friendly controls while you explore.

Save and Share Your Creations

Save named scenes and characters in local browser storage, export a scene JSON or a transparent PNG, and restore your work on the same device.

The Share Scene flow publishes an unlisted snapshot when the service is available; viewers can make their own editable copy without changing your original.

  • Local saves do not require an account.
  • Exported JSON keeps a portable scene copy.
  • Share links are unlisted snapshots, not a public gallery.

Customize

Playground Tools

Build characters from numbers

Enter any whole number from 0 to 1,000,000 and the 3D builder creates a character with that exact number of visible blocks.

Customize characters and scenes

Choose compact, tall, wide, rectangle, steps, pyramid, solid, or random layouts, then adjust colors, material, face, expression, accessories, and background.

Experiment, save, and share

Try Rocket, Black Hole, Tornado, Zero Gravity, and other Physics Toys; save scenes locally, export PNGs, or create an unlisted share link.

Explore

More Numberblocks Games

Choose a community-made game when you want a different style of Numberblocks play. Each opens on its own focused page.

View all games

Numberblocks Playground FAQ

How do I start playing?

Click Start Playing to open the 3D playground. The start cover opens the scene without taking you to another page.

How do I build a character?

Open Create, enter a whole number from 0 to 1,000,000, choose a layout, then customize the colors, face, material, and scene.

Which Physics Toys can I try?

Try Rocket, Black Hole, Tornado, Zero Gravity, and more. Each toy changes how the characters move or respond in the scene.

Can I combine or split Numberblocks characters?

Yes. You can place multiple characters in the playground, combine selected characters into a new number, or split a character into smaller parts.

Can I save or share my creation?

Yes. Save scenes and characters locally, export a JSON or PNG copy, and create an unlisted share link when the share service is available.

Does it work on mobile?

Yes. The game uses a touch-friendly canvas, large controls, and a mobile layout that keeps the page scrollable.