Primordial

An evolution sandbox. Every creature carries genes for speed, size, vision and diet — and passes them on, slightly mutated.

Creatures0

Plants0

Generation0

Births0

Population

Evolution

average trait per group

Speed

Size

Vision

Colour chase

time runs outward

Creatures never eat others of a similar colour. So prey evolve to look like their hunters, and hunters evolve away — the whole ecosystem slowly spins around the colour wheel. Biologists call this kind of endless arms race the Red Queen effect.

Chronicle

Nothing notable yet.

World rules

Food growth100% Mutation strength5% Seasons food booms in summer, dries up in winter

How it works

Genes. Speed, size, vision, diet and colour. Children inherit them with small random mutations.
Energy. Everything costs energy: being big, being fast, seeing far. Run out and you starve.
Diet. Plant-eaters graze, meat-eaters hunt anything no bigger than themselves. Omnivores do a bit of both, worse.
Cover. Fertile zones are thick with plants. Small creatures inside them are hard to spot.
Selection. Nothing is scripted. Whoever eats well has more children, so their genes spread.

Life has ended