The BX Advanced book is over 350 pages of player options and expansions for old school gaming, written for OSE and BX-style games in mind. New classes, spells, a simple skill system, and more.

Take your Old Gods of Appalachia Roleplaying Game adventures to deeper, creepier, and more atmospheric places with three new supplements plus useful and immersive extras. And if you're new to the game, this is a great place to start!