Lair of the Swamp Beast

A system-agnostic, self-contained fantasy adventure set in a swamp where a feared beast is controlled by a sinister hag. It includes the beast’s lair, the hag’s presence, and details for the surrounding swamp and nearby town. Designed as a drop-in scenario, it provides locations, story elements, and general mechanical suggestions for running the adventure with minimal preparation.

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）