Publisher's blurb: The World of Atherria - Players Handbook...an Old School Revival (OSR) compatible expansion campaign. The World of Atherria is designed to expand multiple RPG game systems into a new geographical world with new races, classes, gods, powers and a genesis of its own. It also includes an updated and balanced weapon mastery system for BECMI/Rules Cyclopedia. BRING A NEW WORLD TO YOUR OLD SCHOOL CAMPAIGN!