Default balanced world — 64×64 grid, food and mutation at moderate levels. Good for open exploration.
Rich food + elevated predation cost drives grazer↔carnivore divergence. Watch trophic separation emerge in the Trophic view.
High food, fast regen — population explodes then hits carrying capacity. Feast-famine dynamics, short run.
Seasonal cycles + drought shocks. Sense-food on so plastic genomes can respond to scarcity. Long run needed for adaptation.
Recombinant reproduction enabled. Founders seeded mating-competent so sex is active from tick 0 — no waiting for it to evolve.
Sexual + hybrid-viability penalty: divergent pairs pay an energy cost, driving allopatric drift into distinct species. Long run. Watch the Tree of Life branch.