Green Races is a d20 System campaign setting where monstrous races vie for power and control of its many dungeons, ruins, caverns, and lairs. Fifteen unique Green Races factions--goblins, ogres, gnolls, trolls, and more--are fully described with background, exciting new prestige classes, armies, and a dungeon or lair to protect. Monstrous characters move up through the ranks to rule entire races!