Four rules. No player. No goal.

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Draw — click or drag on the grid to place live cells. Click a live cell to erase it.

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Play — watch your world unfold. Press again to pause.

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Random — seed the grid and see what emerges.

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Clear — wipe everything and start again.

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Patterns — load a preset to see famous configurations: the Glider travels, the Pulsar pulses, the Gosper Gun fires endlessly.

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Cells wrap at the edges. The grid is infinite.