2021 · ソースブック（プレイを拡張するルール／オプション）
Galaxy Exploration Manual
This Starfinder rules expansion focuses on exploration across planets, asteroids, satellites, colony ships, and other science-fantasy environments. It includes new options for every class, a character background generator, and equipment such as personal items, grenades, medicinals, and serums. Rules cover twelve environmental biomes, including airborne, desert, space, subterranean, and urban settings, with systems for generating inhabitants, dangers, and adventure hooks. Players and Game Masters can also develop a world's culture, including its magic, religion, and technology, while guidance supports open-ended space exploration campaigns.
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。