1994 · ソースブック（プレイを拡張するルール／オプション）
Ye Booke of Monstres
A reference volume for the Call of Cthulhu roleplaying game, presenting dozens of races and individual creatures drawn from fiction and published scenarios. Entries cover Outer Gods, Elder Gods, Great Old Ones, Great Ones, avatars, servitor and independent races, fabulous creatures, and unique entities. Each entry may include a quotation, descriptive details, information on human cults, and notes on habits, habitats, or attacks. The material supports investigators, players, and Keepers in developing encounters and scenarios.
- 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。