2006 · ソースブック（プレイを拡張するルール／オプション）
d20 Critical Locations
This collection presents full-color, gridded maps of modern-day adventure locations for d20 Modern and other contemporary role-playing games. Sites include a bowling alley, fire station, high school, pawnshop, bank, motel, church, and fast-food restaurant. Each map includes numbered areas, an inset key, a location description, and game details such as door and wall strengths, typical items, and sample NPCs. Maps are generally one or two pages in size, with each square representing 5 feet, and are compiled in a bound softcover book.
- プレイ人数
- 0
ダイス（主にd20）レベル制（XPを獲得してレベルアップ）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。