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Sandbox

Falling Sand

Brush:

1-8 elements [ ] brush Space pause

How to play Falling Sand

Falling Sand is a cellular-automaton sandbox. Paint particles such as sand and water onto the canvas and watch them tumble, flow, and interact in real time under simple physics rules. There is no goal — it is a toy for experimenting and making mesmerising patterns.

  1. 1 Pick a material from the palette.
  2. 2 Click or drag on the canvas to drop particles.
  3. 3 Watch them fall, pile up, and interact.
  4. 4 Clear the canvas to start a fresh experiment.

Frequently asked questions

What is a falling-sand game?

It is a sandbox where each pixel follows simple rules — sand falls and piles, water flows and levels — producing complex, emergent behaviour from basic physics.

Is there a goal or score?

No. It is a creative toy: experiment with materials and watch how they interact rather than aiming for a win.

How do the materials interact?

Each material has its own behaviour, so combining them — for example sand sinking through water — creates surprising results.

Does it run on mobile?

Yes — drag your finger on the canvas to paint particles on touch devices.