From publisher blurb: Rex Draconis RPG brings D&D novelist legend Richard A. Knaak's brand new high fantasy series, the Rex Draconis Saga, to the tabletop. Using the D&D 5th Edition (OGL) ruleset, Rex Draconis RPG books take players through the exciting yet dangerous lands of Tiberos. War is afoot in Tiberos, is your band of unlikely heroes ready for the challenge? Rex Draconis Player's Companion The Rex Draconis RPG Player’s Companion provides the following additional player options to help give your table the most authentic Rex Draconis experience possible: Lore and legends of Rex Draconis Two new playable races Two new class archetypes Three new Clerical Domains Optional magic system adjustments Three new factions Rex Draconis RPG pantheon Two new backgrounds; Squire and Moon Gazer Based on the a living and running fantasy novel series by one of D&D's bestselling authors (Dragonlance), Richard A. Knaak's - Rex Draconis saga.