2009 · 代替ルール（基本ルールの変種）
One Roll Engine Toolkit
A roleplaying toolkit for Game Masters who want to adapt settings and genres to the One Roll Engine. It presents the complete core rules, along with optional rules for customizing character creation, conflict resolution, and other parts of play. The system uses dice pools to resolve actions quickly while retaining detailed results, making it suitable for building a tailored ruleset around an existing game world.
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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。