The Saga of Sol

Neptune - The Masters of Gravity

Although the other nations have primitive gravity drives, they are vastly larger and consume much more energy. No other nation has a gravity drive smaller than the size of a room, which only provides a fighter class ship 1g acceleration. It is known that they have gravity drives for tiny drone class vehicles no bigger than a man's hand.

Approximate Population: Unknown. Estimated 200,000 by Graystone's representation