Starfinder: Xenomorph King

Chris Van Deelen

Xenomorph King (Combatant) CR 14 XP 38,400


Neutral huge aberration

Init +4; Senses Blindsight 120 ft.; Perception +25


Defense                                                             HP 250

EAC 30; KAC 32

Fort +16; Ref +16; Will +12

Defensive Abilities Acid blood, acid splash; immunities Acid, cold, vacuum

Weaknesses Vulnerability to fire



Speed 30 ft.

Melee Bite, +27 (8d6+26 P) or two claws +23, (4d8+26 S plus grab), two lesser claws +23 (4d6+26 S plus grab) or tail +27, (8d10+26 P)

Space 15 ft. Reach 25 ft. (45 ft. tail only)

Offensive Abilities Grab, inner jaw, rend



Str +12; Dex +4; Con +6; Int -2; Wis -2; Cha +0

Skills Acrobatics +30, Athletics +25

Feats Cleave, great cleave

Languages None

Other Abilities Cling

Gear None



Environment Any

Organization Solitary


Special Abilities

Acid blood (Ex) The blood of the Xenomorph is highly acidic. Whenever it bleeds, the blood will burn through almost any substance and will cause 14d4+14 points of damage. The blood will continue to burn for 1d6 rounds, causing damage each round. Attacking the Xenomorph with natural weapons is a very poor idea as the target automatically suffers the acid blood damage if they are using slashing or piercing attacks.

Acid Splash (Ex) Whenever the Xenomorph is hit by any type of attack which deals more than 10 points of damage in a single strike, the blood will have a chance to effect anyone near. The acid splash has a radius of 10 ft. and those caught in the area of effect are allowed a Ref save (DC 20) to avoid taking damage. If the save fails, the victim will suffer 14d4+14 points of damage per round, for 1d6 rounds.

Cling (Ex) The Xenomorph is able to move its full speed along any surface.

Grab (Ex) When the Xenomorph happens to be within range of a hive, it will often attempt to grab and drag a victim back to the hive to be cocooned and impregnated. The creature must make a claw attack, it will do normal damage. If the attack roll successfully hits the target’s KAC +4, the creature automatically grapples the foe as a free action. (If it hits the targets KAC +13, it instead pins the target). If it succeeds, the creature will then drag the victim back to the hive to be used as a host. The victim can attempt to break free while grappled, requiring a successful escape (using the acrobatics skill). If the victim turns out to be ‘troublesome’ the creature can opt to bite in order to make the target more ‘compliant’.

Inner Jaw (Ex) Possessing an additional ‘jaw’ the creature can opt to use this attack. It typically will use this on a grappled target, or it can opt to use this in addition to the bite. The bite does slightly less damage (1d6+5 S) but is more accurate. The creature has a +30 with this particular attack, and if the target is grappled, then the bonus is +32.

Natural Weapons (Ex) Cannot be disarmed.

Rend (Ex) The strength of the king is so powerful that if it manages to latch onto a target with both claws (through the grab ability), the target must immediately make a Fort Save (DC 20) or be ripped in two, killing it instantly. Even if the saving throw succeeds, the target still suffers 10d6+26 damage from the attack.

Vulnerability to fire (Ex) The creature has few vulnerabilities, and fire is one. Whenever it encounters fire, the creature will take an additional 50% damage (rounded to nearest) and suffer a -4 to any saving throws involving fire.


The King is not a natural Xenomorph, if the species could be called in any way natural. It was created through genetic manipulation by scientists trying to figure out a way to destroy the scourge which is the Xenomorph line.  The creature was created specifically to be used against Queens and other Xenomorphs – to enter a hive and wipe it out.

It has the same overall physical structure of the species, and it even has the huge crown, which is very similar to that of the Queen.  The King is missing the additional limbs of the queen, however.  The tail is also significantly thicker and longer, giving the beast a greater reach with it.

The queen - due to her nature and physiology, is incapable of clinging to any surface the way her progeny can. The King does not suffer from this particular drawback. It is also stronger than the queen, although nowhere near as intelligent.

The first time the King encountered a queen in her hive, she destroyed it, although just barely. The genetic material was then incorporated into her own, allowing her to mutate a Praetorian guard into a new king, under her control. She was able to send the king out to attack other hives to destroy rivals.

Those who failed ended up becoming material for the survivors to use and as such they became part of the hive defense, or as stated, a way for the queen to take out competition. No matter what, there is only a single King at any time in a hive.

Aliens, Predator, Thing Collection

Starfinder Creature Index

Chris Van Deelen is the creator and contributor to over half of the Wisdom from the Wastelands series, contributor to the Swords of Kos: Hekaton anthology. He also wrote Creatures of the Tropical Wastelands, and 100 Oddities found in a Car. As prolific as he is, Chris Van Deelen continues to write and produce material which will be in publication soon. Not only is he a prolific content creator, he also has a wide selection of fiction and stories! If you like his work, please follow his personal author page on Facebook and on Twitter to keep up with his latest news and game content.