Asteroid ships

Asteroid ships ate basically asteroids converted to be used as spaceships. They commonly are capable of using jumpgates, and often have artificial gravity generators to provide onboard gravity for crew and passengers, but generally cannot land on planets. They are commonly used by Orks, but just about any space-faring race at least sometimes uses them.

Asteroid ships are powered by a combination of nuclear-fusion rocket engines and gravity generators, and are equipped with one or more smaller ships, typically small flying saucers or space-to-planet rocket ships permitting access to planetary surfaces and other space ships.