Merrow - Dungeons on Automatic Bestiary

Giant (Aquatic) · 2 hexes · SM +1 Merrow [Monsters on Automatic, SRD coverage: humanoid folk and their sub-races; answers Merrow (SRD 5.1); Merrow (SRD 3.5)]

Ogres that went into the sea and got worse. A merrow is three metres of green-grey muscle with a harpoon and a rope, and its whole method is to put the barb into somebody at the rail and pull. They are not clever, they are patient in the way an ambush predator is patient, and a shipwrecked party is exactly the situation they wait for.

Attributes

ST20

DX9

IQ8

HT12

HP20

Will8

Per9

FP12

Basic Speed5.25

Basic Move5

Dodge8

DR2

Melee attacks

Usage	Level	Damage	Reach
HarpoonHarpoon (10): 2d+2 impaling, Reach 1,2. Barbed and roped. Being hit by it is the smaller half of the problem.	10	2d+2 impaling	1,2
BiteBite (11): 2d-2 cutting, Reach C. Taken while the harpoon rope is still being hauled.	11	2d-2 cutting	C
SlamSlam (10): 2d-1 crushing, Reach C,1. Delivered from below with the whole mass behind it, in water, where nobody has footing.	10	2d-1 crushing	C,1

Traits (10)

Amphibious
Appearance (Ugly)
Bad Smell
Damage Resistance 2 (Tough Skin)
Dark Vision
Doesn't Breathe (Oxygen Absorption) (Oxygen Absorption)
Gluttony (12)
High Pain Threshold
Sharp Teeth
Social Stigma (Monster)

Skills (3)

10Spear
11Brawling
9Stealth

Notes

GCS ancestry draft: gcs/merrow.gct
Independent build total: 84 points of racial traits plus 10 points of racial skills.
Answers the SRD heading(s): Merrow (SRD 5.1); Merrow (SRD 3.5). 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: 300 kg. ST, Size Modifier and DR are checked against it; see the gurps-animal-sanity-check skill for the bands.
Movement: ground Move 5; water Move 5 (primary). 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 2.7 m, which is the SM +1 row; the published Strength discount for size applies at -10%.
ST 20 from Basic Lift and from the job: it hauls an armoured man off a deck and under.
Amphibious and Oxygen Absorption together, like the merfolk: it fights in the water, drags prey into the water, and can follow onto a beach without inconvenience.
DR 2 is hide. A merrow wears nothing, so this is the one record among the armed folk here where the published DR is the whole story.

Encounter rating

CER33

Offense19

Protection14

Threat tierstandard

Appearing3

Wandering3

GCS v5 downloads

Where this one came from

Source record: Merrow [Monsters on Automatic, SRD coverage: humanoid folk and their sub-races]
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): Merrow (SRD 5.1); Merrow (SRD 3.5).
Racial template: 84 points across 15 traits, plus 3 racial skill(s) worth 10 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.