In 1986, Chaosium released this spin-off from their Stormbringer roleplaying game.
“The Eternal Champion is a mystical hero who lives upon all planes of existence, in all ages and times. Whenever the greatest need arises, the Eternal Champion awakens to ensure mankind’s survival. His names are many: Elric, Corum, Erekose, Urlik, Hawkmoon, and a multitude of others. Into the thick of the fray he strides, heroic companions at his side.
Dorian Hawkmoon, Duke of Koln, is an incarnation of the Eternal Champion and the sworn enemy of the foul Granbretan empire. His homeland was ravaged, his people were murdered, and the twisted scientists of Granbretan sought to enslave Duke Dorian’s mind – thus the Jewel in the Skull.”
Hawkmoon RPG: Science & Sorcery in Earth’s Far Future (Boxed Set)
1986 … Kerie Campbell-Robson … Chaosium 2106-X … ISBN 0933635311
Hawkmoon is a stand-alone game, with complete character rules. It is of course based on Chaosium’s Basic Roleplaying (BRP) rules set. The game never caught on, and only one accessory was published beyond the box set.