Porpoise - Dungeons on Automatic Bestiary

Animal · 1 hex · SM +0 Porpoise [Monsters on Automatic, SRD coverage: mundane birds, fish and aquatic animals; answers Porpoise (SRD 3.5)]

Bright, sociable and genuinely curious about boats, travelling in pods that will escort a hull for miles. Sailors count them lucky and are not entirely wrong: a pod harrying a shark has saved swimmers, and their squealing carries far enough underwater to be a warning if anyone can read it.

Attributes

ST13

DX13

IQ6

HT12

HP13

Will12

Per13

FP12

Basic Speed6.25

Basic Move6

Dodge9

DR1

Melee attacks

Usage	Level	Damage	Reach
RamRam (14): 1d crushing, Reach C. A pod will ram a shark to death in company; one on its own will not try.	14	1d crushing	C
BiteBite (14): 1d-1 cutting, Reach C.	14	1d-1 cutting	C

Traits (14)

Bestial
Breath-Holding 3
Cannot Speak
Damage Resistance 1 (Tough Skin)
Enhanced Move 1 (Water)
Gregarious
Nictitating Membrane 2
No Fine Manipulators
No Legs (Aquatic)
Pressure Support 1
Restricted Diet (Carnivore)
Scanning Sense (Sonar)
Sharp Teeth
Ultrahearing

Skills (2)

14Brawling
14Swimming

Notes

GCS ancestry draft: gcs/porpoise.gct
Independent build total: 46 points of racial traits plus 6 points of racial skills.
Answers the SRD heading(s): Porpoise (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: 70 kg. ST, Size Modifier and DR are checked against it; see the gurps-animal-sanity-check skill for the bands.
Movement: ground Move 6; water Move 6, 12 at a sprint (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 1.8 m, which is the SM 0 row.
IQ 6 is deliberate and the highest in this batch: a porpoise is genuinely clever, and Will follows from it.
DR 1 is blubber rather than hide, which is why it is Tough Skin.

Encounter rating

CER20

Offense10

Protection10

Threat tierminor

Appearing6

Wandering5

GCS v5 downloads

Where this one came from

Source record: Porpoise [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): Porpoise (SRD 3.5).
Racial template: 46 points across 20 traits, plus 2 racial skill(s) worth 6 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.