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Starfinder – Resident Caterpillar

Have you ever watched a show and seen an idea so wild you just had to incorporate it into your next GM session? That was my feeling watching the giant mutant caterpillar attack on Netflix’s new Resident Evil show.

It’s in the first episode, and the encounter is a bit short (too short for my tastes frankly) so I don’t feel it’s too much of a spoiler to talk about this chonker. In fact, I felt like a couple guys with assault rifles taking out a pillar the size of one and a half semi trailers was a bit underwhelming. We also didn’t see the oversized grub do much more than throw its weight around, so I’m expanding a bit on the concept here, adding a bristles defense and inherent toxicity that is very common in real world caterpillars.

Massive omnivores, I see these guys moving through the ruins of some civilization and hoovering up any biomass it can find to fuel its growth. Do they eventually cocoon and turn into space moths? That’s for you to decide.


CR 5

XP 200

N Huge animal

Init +0; Senses blindsense (scent) 100 ft., low-light vision; Perception +11

DEFENSE              HP 70

EAC 17; KAC 19

Fort +9; Ref +9; Will +4

Defensive abilities bristles


Speed 30 ft., climb 20 ft., burrow 20 ft.

Melee bite +14 (1d6+12 S), or bristles +14 (1d4+12 and pillar toxin)

Space 15 ft.; Reach 10 ft.


Str +7; Dex +0; Con +3; Int -5; Wis +2; Cha -2

Skills  Athletics +11, Survival +16


Environment any where it can find abundant food

Organization solitary


Bristles A creature that attacks a caterpillar with an unarmed strike or non-reach melee weapon must succeed at a DC 13 Reflex save or take damage as if the caterpillar had struck the creature with its bristles, and is exposed to pillar toxin.

Pillar Toxin

Type poison (injury); Save Fortitude DC 13

Track Constitution (special); Frequency 1/round for 6 rounds

Effect progression track is Weakened—Impaired—Debilitated—Unconscious—Dead.

Cure 2 consecutive saves

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Categories: Article Writing

Jeremy Corff

Artist and Writer