2025 · シナリオ／アドベンチャー／モジュール
Shadows of the Abyss
A nautical horror adventure for 5th–6th level characters, compatible with Old-School Essentials and D&D 5th Edition. Hired to investigate ships disappearing near Isla Zardia, the party crosses storm-tossed seas before becoming trapped in a cursed ship graveyard inhabited by sahuagin and other aquatic threats. The adventure features underwater combat, environmental hazards, celestial puzzles, and a multi-stage ziggurat crawl. Players must uncover the source of the dark magic, manage limited air supplies, and confront a shark demon and its cult in a pocket dimension. The module includes pre-generated characters, new monsters, and rules for underwater encounters.
ソースブック（プレイを拡張するルール／オプション）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。