2015 · ソースブック（プレイを拡張するルール／オプション）
Spheres of Power: Expanded Options
This supplement expands the Spheres of Power magic system with additional character options for players and GMs. It includes favored class options for all Spheres of Power classes, supporting core and expanded races. Conversion archetypes adapt non-alchemy casting classes from the Pathfinder Roleplaying Game: Advanced Player’s Guide and Advanced Class Guide, while new archetypes provide alternate paths for every Spheres of Power class, including lichlings, warlocks, hypnotists, and geomancers.
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）
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LudoyaでSpheres of Power: Expanded Options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。