A falling-sand particle playground. Pick a material, then click & drag on the canvas to draw. Sand sinks through water, fire eats wood and oil, lava turns water to steam, acid dissolves almost everything, gunpowder explodes when it meets flame.
PAUSED
Press P or tap RESUME to continue the simulation
CONTROLS
MOUSE Draw SCROLL Brush size P Pause/Resume 1-9,0 Quick material select