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Biosphere Simulator is a planetary god game sandbox where you guide an entire world from barren volcanic rock to thriving spacefaring civilization.
Shape the atmosphere. Carve oceans. Seed the first microbes. Then sit back and watch evolution unfold across billions of years as ecosystems grow, species adapt, and civilizations rise… or collapse into extinction.
Every world evolves differently. Every playthrough creates a new planetary history.
Your planet begins as a hostile world of erupting volcanoes, shifting tectonic plates, and toxic atmosphere.Cool the planet. Stabilize the oceans. Shape the conditions for life to emerge from primordial chaos.
Seed your world with microbes and guide the great chain of evolution. From single-celled organisms to complex insects, armored fish, towering reptiles, and resourceful mammals.
Predators and prey evolve together as life adapts across oceans, forests, deserts, and frozen tundras.
Watch ecosystems grow, collapse, and transform through mutation, extinction events, and natural selection.
Civilizations emerge. Tribes form, cities grow, and empires expand.
Watch your species develop agriculture, industry, and eventually reach for the stars. But beware — technological progress brings new threats. Nuclear war, climate collapse, and resource depletion can end it all.
Will your world thrive… or collapse beneath the weight of civilization?
Guide evolution or destroy it. The choice is yours.
Intervene directly with powerful god abilities. Hurl asteroids to trigger mass extinctions and clear the way for new life. Supercharge evolution to accelerate speciation. Trigger volcanic eruptions to reshape continents. Spawn rain to terraform deserts. Ignite wildfires to reset overgrown ecosystems.
Every action has cascading consequences across your living world.
Watch your world evolve across billions of years as ecosystems adapt, civilizations emerge, and planetary forces reshape the future of life itself.
48+ unique species evolve across three evolutionary epochs. Every creature carries a simulated genome, with mutations accumulating over generations to drive speciation and adaptation in response to environmental pressures.
Predator-prey relationships, food webs, and carrying capacities create emergent population cycles across 13 distinct biomes — from deep ocean vents to frozen tundras. No two ecosystems develop the same way.
Greenhouse gases, oxygen levels, temperature, and weather interact in a dynamic climate system. Volcanic eruptions, asteroid impacts, and biological activity all reshape the atmosphere.
Intelligent species develop culture, technology, and politics through emergent AI systems. Their choices affect the planet — for better or worse.
Asteroid impacts, supervolcano eruptions, ice ages, pandemics, and powerful god abilities can reshape your world in an instant. Adapt or go extinct.
Track species diversity, monitor extinction rates, and watch evolutionary arms races unfold across deep time.
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