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An infinite, one-input game about trimming data: draw a loop, only the dots inside breed, and the data forgets the world.
Draw a loop round the data.
Three hundred dots. Only the ones inside your loop breed the next generation, each child a parent plus a little jitter, and a tenth of every generation is fresh data from the world. Draw, lift, and draw again.
The number on screen is fit: the share you hold, less the room the loop takes. It climbs. Out of sight, a sample of where the dots came from scores what your loop still holds of it, and when that falls under half the run is over.
Nothing gets harder. The rules are the same at the seventh generation as at the first.
The card puts your data beside the world, under the same loop.
Canvas2D, so the game is whole on any phone. No camera, no account, and nothing leaves the machine.