2009 · キャンペーン設定（ゲーム世界）
Once Upon A Time: A Guide to Fairy Tales (OGL 3.5)
This roleplaying supplement presents guidance for running adventures inspired by traditional fairy tales and folk stories, where ordinary life meets supernatural danger, treachery, talking animals, and frightening monsters. It covers fairy-tale themes, settings, and story elements for campaigns ranging from Renaissance villages to modern cities. The book includes six advanced classes, new skills, feats, and drawbacks, along with advice on character options, a random encounter chart with four custom NPCs, and fifty random storylines. It is compatible with the Modern d20 rules.
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）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）
無料・Web、Android、iOS対応
LudoyaでOnce Upon A Time: A Guide to Fairy Tales (OGL 3.5)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。