Flying Frog SoB: Forbidden Fortress - Core SetForbidden Fortress is a brand new Core Set for Shadows of Brimstone! It can be played as a stand alone game, but is fully compatible with all other existing Shadows of Brimstone products! Set in Feudal Japan, the Forbidden Fortress Core Set allows players to take on the role of an honorable Samurai Warrior, a deadly ninja Assassin, a demon hunting Traveling Monk. As a new Core Set, Forbidden Fortress is an exciting entry point into the world of