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Polski🧬 Human Migration & Cultural Diversity — Serial Founder Effect (2D)
2D top-down anthropology simulation of the peopling of the world: population bands migrate outward from a single origin, split when they outgrow their territory, and lose genetic and cultural diversity with every founding event.
This 2D companion runs the same serial-founder-effect model as the 3D globe version on a flat migration map: population bands drift outward from a single origin, split into new settlements once they outgrow the shared carrying capacity, and each founding event carries only a shrinking fraction of the parent's genetic and cultural diversity — H(n) = H0·(1−k)ⁿ. Colour tracks diversity from bright teal near the origin to grey at the migration front, and faint dots mark past founding sites.
2D top-down anthropology simulation of the peopling of the world: population bands migrate outward from a single origin, split when they outgrow their territory, and lose genetic and cultural diversity with every founding event — the serial founder effect.
2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install
It's the repeated loss of genetic and cultural diversity that happens each time a small group splits off from a larger population to found a new settlement — because the founders only carry a subset of the parent group's variation. Repeated over many founding events along a migration route, diversity keeps shrinking the further a lineage travels from its origin.
Both run the identical population-growth, splitting, and diversity-decay formulas. The 3D version places bands on a rotating globe; this 2D version plots the same bands on a flat, top-down migration map so the mechanic reads clearly without needing to orbit a camera.
Colour encodes each band's current diversity value H, from bright teal (H≈1, close to the origin's founding diversity) to grey (H→0, many founder events removed from the origin) — visualising the founder effect directly on the map.