2020 · ソースブック（プレイを拡張するルール／オプション）
Madness Powers
This sourcebook explores madness as the result of confronting contradictory or impossible truths that undermine a character’s understanding of reality. It expands madness descriptors and features, and adds powers for offense, defense, movement, and utility, including Contagious Madness, Mind Shatter, Death Undone, Dream Travel, Detect Madness, and Glimpse the Future. It also introduces madness complications such as disabilities, obligations, quirks, secrets, and other effects that shape characters and their experiences.
スキルベース（スキルを購入または獲得）ポイント制（ポイントを割り振ってスキルや能力を得る）特性／アスペクト制（性格がゲームプレイに影響する）
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。