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spacetime life

A free Game of Life demo — play it in your browser, no install. Conway's Game of Life with time as the third axis: every generation is a horizontal slice, stacked into a spacetime block. A glider becomes a diagonal thread. Single self-contained HTML file, no dependencies.

by @nicolasadamini · nicolasadamini/spacetime-life on GitHubLANG HTMLHOSTED ON NICOLASADAMINI.GITHUB.IOUPDATED 10 Aug 2026

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Controls: Drag: orbit the camera · Scroll / pinch to zoom · Space to run / pause

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From the README

Conway's Game of Life with time as the third axis. Every generation is a horizontal slice, stacked upward as the simulation runs — so instead of watching cells flicker, you watch the history accumulate into a solid.

A single self-contained HTML file. No build step, no dependencies, no canvas library — the 3D is a hand-rolled orthographic projection over plain Canvas 2D.

The bright frame is the present. Everything below it already happened.

Read the full README on GitHub →

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