2008 · シナリオ／アドベンチャー／モジュール
Whispers of the Obsidian Citadel
A two-round Living Greyhawk Core Special adventure set in Veluna and the Yatil Mountains for characters of levels 5–15. People, objects, and places are shifting in and out of existence as chaos spreads west of Mitrik. With seers warning of a mysterious Door to Perdition and the gods offering no answers, the characters investigate the disturbance while nations remain focused on one another. This adventure begins the final core plot arc of the Living Greyhawk campaign and concludes the For the Greater Good series.
ダイス（主にd20）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）
無料・Web、Android、iOS対応
LudoyaでWhispers of the Obsidian Citadelを遊ぼう
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。