From publisher blurb:
Primus Draconis is a Fantasy Setting Supplement for any Fantasy Roleplaying Game, where the Lords of Terra Draconis are Dragons who are worshipped as Living Gods. The Dragon-Kin races, scions of the Dragon Lords themselves, along with Elves, Dwarves, Humans, and other races, live, work, and die for the Dragon Lords, all for control of Terra Draconis and the mysteries of Primus Draconis.
Primus Draconis introduces the Gamemaster and Players to a world of sword and sorcery fantasy. This setting can be used in a number of different ways that may fit your gaming style. It can be used as a starting point for adventures in your own home setting, as a reference for expanding this setting for your own uses, or simply as background information.