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Rot Grub Swarm

Rot Grub Swarm CR 7

XP 3,200
N Fine vermin (swarm)
Init +6; Senses blindsight (thermal) 30 ft.; Perception +14


EAC 19; KAC 21
Fort +9, Ref +9, Will +6
Defenses swarm defenses; Immunities mindless, swarm immunities


Speed 10 ft.
Melee swarm attack (1d6+7 P plus infestation)
Space 10 ft.; Reach 0 ft.
Offensive Abilities distraction (DC 15), infestation


Str +0, Dex +5, Con +4, Int –4, Wis +2, Cha –4


Infestation (Ex)

As above, but the save DC is increased to 15 and the infestation deals 1d6 points of Constitution damage per round.


Environment any
Organization solitary

Rot grubs are more ferocious and aggressive than ordinary fleshworms, feeding only on living flesh and using dead flesh as an incubator.

Rot Grub Swarm Infested Undead (CR +1)

Undead are not harmed by an infestation of rot grubs, but if they inhabit a corporeal, non-skeletal undead and that host strikes (or is struck by) a living creature with a touch attack or natural weapon, the target is affected by the rot grub swarm’s infestation ability (DC 13), dealing 1d3 points of Constitution damage per round. The CR of an infested undead creature is increased by +1.

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.