2005 · ソースブック（プレイを拡張するルール／オプション）

Adventurer's Handbook: Supplementary Rulebook I

This d20 fantasy roleplaying supplement expands character creation and campaign options with nine new races, including several half-breeds, four new player classes, two alternate class versions, and four prestige classes. It also introduces new spells and schools, equipment, weapons, armor, and three NPC classes for game masters. The 140-plus-page volume provides additional material for outfitting characters and developing adventures.