2016 · ソースブック（プレイを拡張するルール／オプション）
Liminal Power
A tabletop roleplaying supplement focused on powers drawn from the Astral, Ethereal, and Shadow Planes. It provides mechanical support for occult classes and systems involving psionics, binding, and shadow magic, including new archetypes, feats, and prestige classes. The options explore techniques such as empowering psychic implements, creating shadow duplicates, enhancing allies through healing, combining multiple power origins, fusing mystic weapons, commanding planar summons, possessing bodies, and controlling fragmented identities.
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。