All predictions had been correct. The 20 billion tonne asteroid had plummeted to Earth, smashing through its surface like a bullet through glass.
Thousands of tonnes of molten rock erupted and spluttered over the Earth's oceans, vaporising them instantly. Winds raged all over the globe, ferocious, relentless, carrying great plumes of dust and debris out into space and across the surface. Shock waves ran across the planet, the Earth rang like a bell, as all life form ebbed away.
Civilisation ceased to exist...
The Moon 2200AD
As Commander of Moon Base, you witness the event with an astonished gaze. You know the task in hand. With the rich resources of the Solar System at your disposal and a small research team on Luna Base 1, you must ensure the survival of the human race.