2020 · ソースブック（プレイを拡張するルール／オプション）
Ecology of the Sahuagin
A roleplaying supplement focused on the Sahuagin, a predatory aquatic race that emerges from the ocean’s deepest trenches to attack ships, survivors, and coastal communities. It explores their harsh underwater environment, beliefs, society, and devotion to a shark god who promises dominion over all life above and below the waves. The setting presents dangerous seas, violent storms, drifting lifeboats, and the crushing depths where mythological monsters and inhuman horrors thrive.
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）ダイス（主にd20）
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。