Starfinder: Xenomorph Shark

Chris Van Deelen

Xenomorph Shark (Combatant) CR 6 XP 2,400

Neutral huge aberration

Init +6; Senses Blindsight 120 ft.; Perception +13


Defense                                                             HP 90

EAC 18; KAC 20

Fort +8; Ref +8; Will +7

Defensive Abilities Acid blood; immunities Acid, cold, vacuum

Weaknesses Vulnerability to fire



Speed 60 ft. (swim only)

Melee Bite, +16 (2d8+14 P) or tail +16, (4d8+14 Crit Swallow whole)

Space 15 ft. Reach 10 ft.

Offensive Abilities Inner jaw, swallow whole



Str +8; Dex +2; Con +0; Int -4; Wis -2; Cha -2

Skills Athletics +18, Stealth +18 (+23 in hive)

Feats Improved initiative

Languages None

Other Abilities Grab, ram, stalker, swallow whole

Gear None



Environment Any

Organization Solitary, small groups (1d4)


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 1d6+6 points of damage. The blood will continue to burn for 1d6+6 rounds, causing damage each round. Attacking the Xenomorph with natural weapons is a very poor idea.

Grab (Ex) This creature has the ability to ‘grab’ with a bite attack.  The creature must make a successful bite attack, and 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 (2d6+14 S) but is more accurate. The creature has a +19 with this particular attack, and if the target is grappled, then the bonus is +22.

Jet (Ex) The creature can swim backward as a full-round action at the listed speed. It must move in a straight line while jetting, and does not provoke attacks of opportunity when it does so.

Natural Weapons (Ex) Cannot be disarmed.

Ram (Ex) This ability can be used in the exact same manner as the Bull Rush combat maneuver, except the distance is 10 feet, and the attack inflicts 2d10+14 points of damage.  It can be used to capsize or damage small craft. If it strikes a craft, a successful piloting roll (DC 18) will prevent it from being capsized or damaged. If it is capsized, the passengers are thrown into the water, and will require a Athletics (swim check) to climb back on board, or at least onto the bottom, which may or may not afford them protection from further attacks.

Stalker (Ex) The Xenomorph is a near-perfect predator. As such it gains a +5 racial bonus to stealth rolls, and whenever the creature is in a hive, this bonus increases to +10

Swallow Whole (Ex) If a creature with this special attack begins its turn with an opponent grappled in its mouth (see Grab), it can attempt a new combat maneuver check (as though attempting to pin the opponent). If it succeeds, it swallows its prey, and the opponent takes bite damage. Unless otherwise noted, the opponent can be up to one size category Smaller than the swallowing creature. Being swallowed causes a creature to take damage each round. The swallowed creature will take 2d6+6 points of acid damage per round. A swallowed creature keeps the grappled condition, while the creature that did the swallowing does not. A swallowed creature can try to cut its way free with any light slashing or piercing weapon the amount of cutting damage required to get free is 10 points.  or it can just try to escape the grapple using Acrobatics (Escape DC 18). If a swallowed creature cuts its way out, the swallowing creature cannot use swallow whole again until the damage is healed. If the swallowed creature escapes the grapple, success puts it back in the attacker’s mouth, where it may be bitten or swallowed again.

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.


This particular variant of the Xenomorph occurred when a shark-like creature swallowed a face-hugger. The creature was implanted and the embryo took the genetic structure of the shark and grew to massive size.

On average, these creatures are fifteen to twenty-five feet in length, and can weigh in at several tons. The creature retains the typical bio-mechanical appearance, although it has the overall structure of a shark or other similar ocean-borne creature like a whale. It is blind, as is the case with most of the variants of this species, and instead of legs and arms, it has fins. The tail can still be used to strike targets and inflicts heavy damage when doing so.

The downside is the creature cannot leave the water. It can survive on the land, but it cannot move. Like others of its species, the creature is fully capable of surviving in the depths of space. In the water, they are an absolute terror; able to move at speeds even their land-bound brethren are incapable of obtaining.  They are also fully capable of ramming other creatures and even small ships like speedboats and the like.

The creatures are not capable of building a hive, and are used more for combat than to attempt and capture hosts, although they will attack and attempt to bring other shark-like creatures back to an established hive (typically on a coast) where they can be ‘fed’ Facehugger to create more of these particular creatures.

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.