Palladium Books is a publisher of role-playing games (RPGs) best known for its Rifts series (1990–present). Palladium was founded April 1981 in Detroit, Michigan, by current president and lead game designer Kevin Siembieda, and is now based in Westland, Michigan. The company enjoys the support of a small but dedicated fanbase who praise its various game series for their innovative settings and ease of adaptability to various personal preferences, play styles, and power levels.