2015 · ソースブック（プレイを拡張するルール／オプション）
Advanced Merfolk
This roleplaying supplement provides rules and setting material for playing merfolk characters. It includes standard racial traits, two subraces, alternate racial traits, four class options, underwater-focused feats, aquatic spells and psionic powers, and themed mundane, alchemical, magical, and artifact items. The supplement also introduces a deity devoted to undersea life and the power of the waves, along with guidance on merfolk adventurers and incorporating the race into a campaign setting.
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。