2017 · ソースブック（プレイを拡張するルール／オプション）
Looking Glass: Hong Kong
This setting supplement presents Hong Kong as a backdrop for GUMSHOE investigations, with descriptions of its crowded districts, markets, factions, and three distinctive locations. It provides thirteen adventure seeds and material for spy, horror, and occult campaigns, including notes on themes of disease, isolation, organized crime, and the supernatural. The overview offers broad-stroke details as a starting point for creating adventures rather than a comprehensive guide.
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）ダイス（主にd6）
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。