2015 · ソースブック（プレイを拡張するルール／オプション）
Cthulhu Through the Ages
This roleplaying supplement adapts the latest Call of Cthulhu rules to seven historical, fantastical, and future settings: Imperial Rome, Mythic Iceland, the Dark Ages, the Dreamlands, Victorian Gaslight, Cthulhu Icarus, and The Reaping. It provides era-specific guidance for creating investigators, equipment and occupations, updated combat rules for selected settings, scenario seeds, setting-specific monsters, investigator organizations, and copyable character sheets. The material is intended to help Keepers develop Mythos investigations across different time periods.
- プレイ人数
- 0
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）スキルベース（スキルを購入または獲得）
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。