Crast is a planet in Camba System. It is the only planet in this system.
6 billion years ago life began to appear on the glorious world of Crast, which was filled with many seas and flora at that time. Around 300,000 years ago the Crastors evolved into what they are today. Sapience was achieved around 60,000 years ago. They are now mainly based in large space stations orbitting the planet due to an event known as The Black Out when the planet changed to a rocky, nearly waterless world due to soaring temperatures.
It is now home to just 300 million Crastors, while the rest live in space stations orbiting the planet. Nearly no other life is to be found on the planet except for a few plants and microorganisms. Temperatures still reach nearly 140 degrees in some areas.