2011 · コアルール（プレイに必要な最小限）
D20 Open RPG
A free, d20-based tabletop roleplaying system with talent-based character creation instead of fixed classes. Characters develop through a unified system for talents, skills, abilities, and saving throws, allowing a wide range of concepts. Combat uses Action Points, while movement is handled with Movement Points. Fatigue Points add an additional resource for representing exertion and physical strain.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）
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。