2011 · キャンペーン設定（ゲーム世界）
The Widening Gyre
A campaign setting for the HERO System 6th Edition depicts an alternate 19th century of steampunk technology, dark magic, occult conspiracies, and monstrous threats. It provides character templates for adventurers such as airship pirates, clockwork beings, and consulting detectives, along with rules for weapons, vehicles, armor, Victorian devices, and magic. The setting includes a detailed campaign background, sample spells, and example allies, villains, technologists, and creatures. HERO System 6th Edition rules are required to play.
ソースブック（プレイを拡張するルール／オプション）スキルベース（スキルを購入または獲得）ポイント制（ポイントを割り振ってスキルや能力を得る）ダイス（主にd6）
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。