SAND / LAB Make a world. Change one thing.

Materials —

THE INGREDIENTS

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Material category

Loading ingredients…SELECT TO DRAW

No materials match. Try a different name or category.

Your first ingredient

A whole world of little possibilities.

✳ Everything is here to experiment with.

EXPERIMENT

Starting

TRY THIS

Choose a material. Follow your curiosity.

TRY THE SEQUENCE

480 × 300/DRAW · SAND

TEMPERATURE · SANDBOX °C

Cold20°CHot

SAMPLE

—°C—charge / 255

Burning · fuel is being consumed

Inspect tool to pin

Making room for a little chaos.

Opening the lab…

1.0×

Simulation speed

Brush4

✳

LATEST REACTION

Drag to draw·Right click to erase·Scroll to zoomTouch to draw·Select Inspect to sample

— particles·— fpsBEVY

FOLLOW THE CONNECTIONS

A field guide to possibility.

Hot neighbors—including lava, molten metal, and burning fuel—can ignite combustible materials. Cooling and wet contact can extinguish fuel. These shared behaviors work alongside the recipes below; observed recipes are marked as you play.

Search interactions

Interaction categoryObserved only

No interactions match. Clear the filters or try another material.

MAKE YOURSELF AT HOME

A few useful controls.

Pick a material and draw. Heat or cool it, make a connection, then follow what changes. Experiments are starting points; the field guide is always open to you.

Draw / erase: Drag / right drag
Move the view: Pan / middle drag
Zoom at pointer: Scroll wheel
Pause / resume: Space
Advance one tick: N
Draw / erase tool: D E
Heat / cool / inspect: H C I
Brush size: [ ]
Sand / water / stone: 1 2 3
Cancel drawing / unpin: Esc

On touch screens, use Browse all for the full palette. Draw with one finger, select Pan to move the view, and use + / − to zoom. Select Inspect and tap to pin a sample. Temperature uses sandbox °C; charge is a level from 0 to 255.

Save your world as .bsand. This includes temperature, charge, and observed reactions. Earlier Sand / Bevy .bsand worlds can be opened too. Original .sand files use a different format and are not supported.

Inspired by ai-sand-fork. Rebuilt in Rust with Bevy.