2004 · ソースブック（プレイを拡張するルール／オプション）
Artifacts of the Ages: Rings
This d20 System supplement presents legendary rings, gems, and other magical jewelry designed to remain meaningful throughout a campaign. Each artifact begins with minor abilities and gains power as its bearer advances in level, making it suitable for introduction during low-level play. The items grant basic powers to any wearer, while specialized scion prestige classes unlock stronger abilities tied to individual artifacts. Characters are rewarded for keeping and developing a signature magical item rather than replacing it as better equipment appears.
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。