falling sand
A free sandbox game — play it in your browser, no install. A falling-sand playground in one HTML file. Sand, water, fire, lava, acid and plants that react to each other.
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Controls: 1–0 pick an element · E eraser · right-click erases · Space pause · C clear
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Open the live demo Source on GitHubFrom the README
A falling-sand playground in a single HTML file. Draw sand, water, fire, lava, oil, acid, plants and more, and watch them react to each other.
Heavier stuff sinks through lighter stuff: sand sinks in water, water sinks below oil.
The world is a 320×180 grid of cells. Every frame, each cell is updated from the bottom up by a small rule for its element (powders fall, liquids flow sideways, gases rise, fire burns out). This is a classic cellular automaton.
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