2012 · ソースブック（プレイを拡張するルール／オプション）
GURPS Power-Ups 4: Enhancements
This GURPS supplement expands the Basic Set’s rules for modifying advantages with more than 50 general enhancements, including new options and variants. Each enhancement is classified to indicate its likely impact on game balance. The book provides guidance for handling complex enhancements, introduces meta-enhancements for creating new ability categories, expands the Cosmic enhancement, and clarifies rules for modifying existing damage. A reference table lists the enhancements and their ratings.
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）
無料・Web、Android、iOS対応
LudoyaでGURPS Power-Ups 4: Enhancements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。