What is the setting of Blue Adept by Piers Anthony?

This novel is set in an imaginary world, on the planet Proton and in its alternate frame, Phaze. While Proton is a world filled with scientific knowledge and inventions, Phaze consists of paranormal creatures and magic. In Proton, the characters are robots, serfs and Citizens. Citizens represent the highest socioeconomic class, while robots have no status whatsoever. Serfs struggle in the Tourney to obtain the status of Citizen.