2016 · ソースブック（プレイを拡張するルール／オプション）
Building the Sandbox
A collection of essays on creating and running sandbox-style fantasy roleplaying campaigns. It examines the nature of sandbox play, the influence of game systems, and practical methods for establishing a home base, surrounding region, outdoor areas, and initial adventure sites. Written with Dungeon Crawl Classics in mind, the guidance also applies to other roleplaying systems. Additional material covers incorporating published adventures, designing minor adventure locations, developing wilderness environments, and using centaurs in sandbox campaigns.
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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）レベル制（XPを獲得してレベルアップ）
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。