Graf

Graf is and industrial planet home to thousands of robots that make, invent, and create thechnology, the whole planet is covered with a green haze as a result of radioactivity, it doesn't affect the robots though. Factories and industries cover most of the planet, with one huge city where all the robots live. Robots are constantly creating new technology so Graf is the most high-tech planet yet. Transports are always coming and going with new and old technology. There are no plants or trees on Graf because they all died because of all the radioactivity. The whole planet is flat, there are no mountains either.