Knowledge of how alien lifeforms evolve, interact, and adapt across different environments—vital for identifying, interpreting, or predicting alien biology.
Roll d100 against DR 100.
Success: You identify the creature’s biological structure, environment compatibility, and behavior patterns. This may inform diplomacy, combat tactics, or medical intervention.
+ 20 DR — You are in combat with the creature.
+ 20 DR — Alien species is completely undocumented or classified
+10 DR — Target lifeform is bio-modified, mutated, or hosts symbiotic systems
+10 DR — You are under time pressure or lacking equipment
–10 DR — Species has known biological parallels (e.g., close to known mammals)
–10 DR — Long study period or access to lab/medical data
You dissect a xeno-predator corpse from a jungle moon. Its dual stomachs and layered carapace suggest resistance to acidic environments. You roll Exo-Biology to determine if it’s vulnerable to energy-based attacks.
Exo-Biology is the study of non-Earth lifeforms across the galaxy. It blends evolutionary theory, comparative physiology, and alien ecology to interpret life that may function on entirely different principles than known biology. Whether faced with a crystalline lifeform that metabolizes radiation, or a gelatinous organism that communicates chemically, this skill allows a character to identify survival traits, exploit weaknesses, or offer informed responses to unknown beings. It's invaluable for exploration, diplomacy with non-humanoids, interspecies medical research, and combat adaptation.
Not optimized for sequencing, but supports a lot of skills such as medicine skills and some academic skills (Alien Lore).
No direct counters.