Porpoise - Dungeons on Automatic Bestiary

Animal · 1 hex · SM +0 Porpoise (Monsters on Automatic; answers SRD 3.5)

Bright, sociable animals that travel in pods and will follow a hull for miles out of what looks a great deal like curiosity. Sailors count them lucky and are not far wrong: a pod harrying a shark has saved swimmers before now. Their calls carry a long way underwater, which is useful to anyone who can read them.

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

Racial cost: 46 points of traits plus 6 points of skills.
Body weight: 150 lb.
Movement: ground Move 6; water Move 6, 12 at a sprint (primary).

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.
Typical Stats, damage and ratings are derived from the racial template rather than authored beside it, so the sheet and the stat block cannot disagree.
GCS ancestry draft: gcs/porpoise.gct
The published Move is the primary medium's cruising Move; sprint figures are stated in the movement note and not folded into it.
Treasure and grappling are not authored for this record and ship as explicit nulls, which reads as known absent rather than forgotten; `lair` carries a short habitat note instead, because where a creature dens is an encounter fact rather than a loot one.
Body mass is the figure the build was scaled from and the one fact that makes it checkable; see the gurps-animal-sanity-check skill for the bands.
About 6 feet, which is the SM 0 row.
IQ 6 is deliberate: a porpoise is genuinely clever, and Will follows from it.
DR 1 is blubber rather than hide, which is why it is Tough Skin.

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.