2022 · ソースブック（プレイを拡張するルール／オプション）
Interstellar Species
A Starfinder supplement focused on the galaxy’s diverse playable species, from extradimensional kobolds and plant-like raxilites to dragonkin and crystalline urogs. It introduces the evolutionist class, which transforms its body to meet different challenges, and expands 25 species with new cultures, histories, feats, spells, and gear. The book also provides tools for creating original playable species, covering appearance, culture, and abilities, along with a gallery of ready-to-use NPCs including assassins, explorers, investigators, and sports stars.
属性／ステータス制（STR、CON、PERなど）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d20）
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。