Old-School Essentials Reference BookletA quick reference for the most commonly used Old School Essentials rules and tables. Game procedures: Summaries of the core rules of the game, including the procedures for dungeon, wilderness, and waterborne adventuring, and combat. Player characters: All tables pertaining to PCs, including ability score modifiers, saving throws, class skills, spell progression, and native languages. Downtime and equipment: Common PC activities between adventures,