Xenobiology

2025 · Sourcebook (rules/options to enhance play)

Xenobiology

This Starfinder Second Edition supplement focuses on the study and use of extraterrestrial life. It introduces the Bioengineer and Exostentialist archetypes, feats such as Psychic Backlash, Reckless Experimentation, Companion Bond, and Companion Evolution, and new aberrant companions. Players and GMs can use these rules to investigate alien species, experiment with living organisms, and bring unusual companions into exploration and adventure.

Attribute/Stat Based (STR, CON, PER, etc)Dice (Primarily d20)Point Based (allocate points to get skills, powers, etc)

Game facts (players, playing time, age, credits) from BoardGameGeek.