2020 · ソースブック（プレイを拡張するルール／オプション）
Survival (CoC)
A supplement for investigators facing the practical dangers of wilderness travel in the world of cosmic horror. It covers food and water, fire-starting, shelter-building, foraging, hunting, pack animals, illness, hypothermia, venomous creatures, and campsite security. The material provides survival challenges for expeditions without relying on repeated ambushes or supernatural attacks. It also includes herbal remedies, pest repellents, a new occupation, additional equipment, and 200 random events for use in scenarios.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）ランダム属性生成（キャラクター作成時）
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。