necrotris
A free tetris game — play it in your browser, no install. Tetris, except what you stack is alive. Settled blocks replicate; tidy stacking is what kills you.
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Best with a keyboard. Controls: ← → to move · ↑ to rotate · ↓: soft drop · space: hard drop
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Open the live demo Source on GitHubFrom the README
Tetris, except what you stack is alive.
Play it — one HTML file, no build, no dependencies, no network. Save it and it still works.
Every 12 locks, the board blooms. Each settled cell with exactly one settled neighbour copies itself into one of its empty neighbours.
Which inverts the game. In Tetris, debris is inert — it only ever sits there and waits to be cleared. Here it's a population, and the rule rewards loneliness: a cell wedged inside a dense stack has too many neighbours to reproduce, while a cell sitting off on its own with a single friend breeds.
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