A Sword & Planet Role-Playing Game
From the Introduction:
Under the Moons of Zoon has three "literary parents" whose atmosphere it tries to capture.
The first and most evidently influential parent are the "Sword and Planet" and "Planetary Romance" tales made popular by E.R. Burroughs with John Carter of Mars, and its multitude of imitators.
The second parent are dark fantasy tales of the pulp era: weird tales of alien horrors made popular by C.A. Smith and H.P. Lovecraft.
The last parent is apocalyptic and post-modern SF as exemplified by the works of M. John Harrison and Gene Wolfe.
Swashbuckling Action
Black and white moral codes
Forbidden powers and corruption
Alien horrors
True love
Civilization vs. Barbarism
Decadence and a glorious past