2003 · ソースブック（プレイを拡張するルール／オプション）
Potent Portals
This supplement details magical portals and doors for castles, wizard’s towers, temples, monasteries, and other buildings. Game Masters can use them as traps, security measures, defensive mechanisms, or atmospheric features, with mechanics covering effects such as boastful talking doors and locks that break thieves’ tools. The portals range in power from simple challenges suitable for low-level characters to deadly defenses capable of threatening experienced adventurers.
レベル制（XPを獲得してレベルアップ）属性／ステータス制（STR、CON、PERなど）スキルベース（スキルを購入または獲得）
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。