2020 · ソースブック（プレイを拡張するルール／オプション）
Spheres Left Behind
This campaign setting expands a war-scarred science-fiction universe shaped by the Sundering, with five scattered planets, their moons, and colonies, technologies, and peoples adapted to a new age of conflict and espionage. It provides lore and game material for Starfinder and Pathfinder, including new archetypes and class options, over 70 class features, feats, abilities, and other enhancements, plus more than 30 Technomancy talents and a new Pilot sphere. Game Masters also receive technomantic wild magic effects, item glitches, expanded setting material, and errata.
属性／ステータス制（STR、CON、PERなど）ダイス（主にd20）ポイント制（ポイントを割り振ってスキルや能力を得る）
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。