2014 · ソースブック（プレイを拡張するルール／オプション）
Ultimate Ethermagic
A cosmic fantasy supplement for Pathfinder introduces three ethermagic classes: the full-casting ethermancer, melee-focused ethermagus, and firearm-wielding etherslinger. Eight archetypes, favored class options, and 39 feats expand their roles. Ethermagic uses a rapidly regenerating spell-point pool, allowing characters to combine effects into custom manifestations and choose when to conserve power or unleash stronger abilities. The book includes more than 225 manifestations across six schools, along with rules for detection, countering, prestige-class qualification, and powerful once-per-day greater manifestations.
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）
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。