1981 · ソースブック（プレイを拡張するルール／オプション）
Cults of Terror
A sourcebook for RuneQuest featuring nine dangerous cults from Glorantha, including Primal Chaos, Mallia, Bagog, Thed, Vivamort, Thanatar, the Crimson Bat, Krarsht, and Nysalor/Gbaji. Each cult includes its myths, history, membership requirements, associated cults, and other details. The book also adds Rune spells, battle magic, skills, five new Runes, an expanded cult compatibility chart, rules for nets, a pronunciation guide, and essays on myth and history. Adventures involving the Lunar initiate Paulis Longvale provide additional material for campaigns, and the contents can be adapted to other fantasy role-playing systems.
- プレイ人数
- 0
種族ベース（プレイヤーの種族/種がゲームプレイに影響する）ダイス（各種）属性／ステータス制（STR、CON、PERなど）
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。