Crab - Dungeons on Automatic Bestiary

Animal · 1 hex · SM -4 Crab [Monsters on Automatic, SRD coverage: mundane birds, fish and aquatic animals; answers Crab (SRD 5.1)]

Shore vermin in a shell three sizes too good for it, sidling out of the rocks to strip anything the tide leaves. The pincers hurt and the shell is genuinely hard for something this small, which is the whole of its defence and most of its personality.

Attributes

ST2

DX11

IQ3

HT11

HP2

Will8

Per9

FP11

Basic Speed5.5

Basic Move5

Dodge8

DR3

Melee attacks

Usage	Level	Damage	Reach
PincerPincer (11): 1d-7 cutting, Reach C. A nipped finger. Cannot parry.	11	1d-7 cutting	C

Traits (9)

Amphibious
Bestial
Cannot Speak
Cold-Blooded
Damage Resistance 3
Extra Legs (Eight Legs)
Horizontal
No Fine Manipulators
Sharp Claws (Pincers)

Skills (1)

11Brawling

Notes

GCS ancestry draft: gcs/crab.gct
Independent build total: -136 points of racial traits plus 1 points of racial skills.
Answers the SRD heading(s): Crab (SRD 5.1). Only the creature identity is taken from the SRD; the GURPS statistics, ratings and prose are this project's own work and reproduce no SRD text.
Typical Stats, damage and ratings are derived from the racial template, not authored beside it, so the sheet and the stat block cannot disagree.
Body mass used to scale this build: 0.4 kg. ST, Size Modifier and DR are checked against it; see the gurps-animal-sanity-check skill for the bands.
Movement: ground Move 5 (primary); water Move 5. The published Move is the primary medium's cruising Move; sprint figures are stated here and not folded into it.
Treasure and grappling are not authored for this batch and ship as explicit nulls; `lair` carries a short habitat note, because where a wandering animal dens is an encounter fact rather than a loot one.
About 40 cm across with the legs spread, which is the SM -4 row.
DR is full armour, not Tough Skin: a carapace is shell, and a scratch that would slip past thick hide does not slip past this.

Encounter rating

CER1

Offense-4

Protection-6

Threat tierminor

Appearing4

Wandering5

GCS v5 downloads

Where this one came from

Source record: Crab [Monsters on Automatic, SRD coverage: mundane birds, fish and aquatic animals]
Source system: doa_fixture / doa_authored
Released under: cc_by_4_0
Conversion: 0.1.0-srd-independent-build
Review status: approved
Credit: Monster statistics, ratings and description prose by Monsters on Automatic; AI-generated first draft, project-reviewed, released under CC BY 4.0.
Description: Written by Dungeons on Automatic, released under cc_by_4_0

Independently authored GURPS build. The SRD supplies the creature identity this record answers to and nothing else: no SRD statistics, wording or presentation is reproduced, and no third-party GURPS conversion was used as an input.
Answers the SRD heading(s): Crab (SRD 5.1).
Racial template: -136 points across 15 traits, plus 1 racial skill(s) worth 1 points.
Every trait is drawn from the project's controlled GURPS vocabulary in scripts/srd/trait-library.mjs, which carries the page reference and published cost for each entry.
sourceSystem is recorded as doa_fixture because that is the package contract's value for project-authored material; the SRD headings this record answers are in provenance.coversSourceIdentities.
Ratings are recomputed through the consumer CER path on every build, so a mechanics change cannot leave a stale rating behind.

Copyright 2026 Monsters on Automatic. GURPS-compatible monster statistics, ratings and prose authored for this package as an AI-generated first draft under project review. No SRD text, and no third-party GURPS conversion, is reproduced. Portrait and tokens are AI-generated original art. Sources and credits.