2002 · 资料书（用于增强玩法的规则/选项）
NPC Essentials
A sourcebook of tips, techniques, and practical aids for creating and running non-player characters in role-playing campaigns. It covers NPC design, role-playing, and management throughout a campaign, with archetypes, encounters, reference charts, and an example NPC-focused adventure.
场景 / 冒险 / 模块基于属性/数值（STR、CON、PER 等）骰子（主要为 d20）职业制（飞行员、巫师、科学家等）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 NPC Essentials
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。