2008 · ゲーム以外の書籍（ただしRPG関連）
Dungeons & Dragons 4th Edition System Reference Document
A reference document for creating licensed products compatible with a fourth-edition fantasy roleplaying system. It lists approved game terms and references, explains how to use related forms, and provides blank formatting templates for original monster, poison, skill challenge, and similar statistics. The guidelines describe how to develop compatible content while avoiding reproduction or alteration of rules text, statistics, tables, and protected definitions from the core rulebooks.
属性／ステータス制（STR、CON、PERなど）ダイス（主にd20）レベル制（XPを獲得してレベルアップ）
無料・Web、Android、iOS対応
LudoyaでDungeons & Dragons 4th Edition System Reference Documentを遊ぼう
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。