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Seastar CR 6

Muscular tentacles explode from the sand and fold inward towards a toothless central maw.

XP 9,600
N Large vermin (aquatic)
Init +0; Senses blindsense (vibration) 30 ft.; Perception +13


EAC 18; KAC 20
Fort +10, Ref +8, Will +5
Defensive Abilities split, unflankable


Speed 10 ft., climb 10 ft.
Melee slam +16 (1d8+11 B plus grab)
Space 10 ft.; Reach 10 ft.
Offensive Abilities external stomach


Str +5, Dex +0, Con +3, Int —, Wis +2, Cha +0
Skills Athletics +13
Other Abilities mindless


External Stomach (Ex)

A seastar can eject its stomach to begin digestion of a meal. At the beginning of a seastar’s turn, it may eject its stomach onto a creature it has grappled, dealing 1d8 acid and bludgeoning damage.

Split (Ex)

When a seastar survives a critical hit that dealt at least 9 damage, it splits into two seastars with half of the original’s remaining hit points.


Environment any ocean
Organization solitary, pair, or field (6–24)

The seastar is a unique result of that evolution with no reproductive mechanism other than to split and eventually heal after being attacked by predators. Ironically, the number of natural enemies that find them delicious ensures their survival.

Seastars have mouths on both sides of their bodies, allowing them to crawl towards stationary food, or to lies half-buried in sand to ambush prey crawling across the seabed above them.

The average starfish is 7 feet in diameter and weighs 600 pounds. When introduced to the oceans of other worlds, a seastars sometimes secure a role as apex predators, growing substantially larger but splitting less often. Unlike most invasive species, a seastar can only reproduce in oceans that also contain predators.

Section 15: Copyright Notice

Alien Bestiary (Starfinder) © 2018, Legendary Games; Lead Designer: Jason Nelson. Authors: Anthony Adam, Kate Baker, John Bennet, Eytan Bernstein, Robert Brookes, Russ Brown, Duan Byrd, Jeff Dahl, Robyn Fields, Joel Flank, Matt Goodall, Robert J. Grady, Jim Groves, Steven T. Helt, Thurston Hillman, Tim Hitchcock, Nick Hite, Daniel Hunt, Mike Kimmel Marshall, Isabelle Lee, Jeff Lee, Lyz Liddell, Jason Nelson, Richard Pett, Tom Phillips, Alistair J. Rigg, Alex Riggs, Wendall Roy, Mike Shel, Neil Spicer, Todd Stewart, Russ Taylor, Rachel Ventura, Mike Welham, George Loki Williams, Scott Young.