2005 · ソースブック（プレイを拡張するルール／オプション）
Ghostfighter
A PDF supplement for the a|state roleplaying game focusing on the City’s Ghostfighters, a culture of knife-fighters defined by distinctive philosophies, methods, tattoos, scars, slang, and specialist equipment. It provides guidance for adding a Ghostfighter to an existing group or running an all-Ghostfighter campaign, along with character creation options, new advantages, disadvantages, skills, melee weapons, and specialist kit. Six notable Ghostfighters and five ready-made character templates illustrate different approaches to the career.
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）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。