2020 · ソースブック（プレイを拡張するルール／オプション）
Oldskull Game Expansions: 1977 Bestiary
A bestiary supplement for Original, First Edition, and Second Edition fantasy role-playing campaigns, with more than 130 monsters beginning with the letter A. It includes creatures such as aerial servants, ankhegs, ants, beetles, bugbears, bulettes, demon lords, and evil eyes. Each entry provides a clarified, table-ready stat block covering attacks, damage, abilities, treasure, morale, rarity, vulnerabilities, and other details. The collection expands classic monsters with additional subtypes and variants while addressing ambiguities in the original rules, making it suitable for Basic, Expert, Advanced, and easily converted later-edition games.
属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）クラス制（パイロット、ウィザード、サイエンティストなど）
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LudoyaでOldskull Game Expansions: 1977 Bestiary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。