Generate 30,000 TW of power.
Introduce animal life onto the planet.
Reach atmospheric pressure of 1 atm on a barren planet.
Evolve animals into a civilization.
Cover more than 80% of the planet with clouds.
Witness civilization's severe destruction of forests.
Achieve 600 Gt of biomass on a desert planet.
Make a thriving planet (500+ Gt biomass, 1000+ pop) barren within 3000 cycles.
Witness civilization's journey into space.
Spread forests to cover more than 50 tiles.
Build an orbital mirror.
Spread grasslands to cover more than 10 tiles.
Reach a total biomass of 2000 Gt.
Burn a city with populations of 1,000 or more.
Advance a civilization to the Industrial Age.
Witness an interspecies war break out.
Lower the atmospheric CO2 concentration below 0.00003 atm.
Supply Gift Energy to an Iron Age civilization.
Melt all the ice on an ice planet.
Inhabit half the tiles with marine life on an archipelago planet.
Have a plague infect more than 1000 cities.
Sculpt the planet surface.
Cover more than 50% of the planet surface with cities and reach a population over 7,500,000.
Have three civilizations each with a population over 300,000.
999
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1147061
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310147
143076
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16790