Viper Snake - Dungeons on Automatic Bestiary

Animal · 1 hex · SM -2 Viper Snake [Monsters on Automatic, SRD coverage: snakes; answers Poisonous Snake (SRD 5.1); Viper Snake (SRD 3.5)]

Under a metre, patterned into invisibility against dead leaves, and encountered by standing on it. A viper is not a monster and does not behave like one: it strikes once, it means it, and it is gone. The consequences arrive later and are what the party will actually have to deal with.

Attributes

ST2

DX14

IQ3

HT11

HP2

Will8

Per10

FP11

Basic Speed6.25

Basic Move6

Dodge9

DR0

Melee attacks

Usage	Level	Damage	Reach
BiteBite (16): 1d-7 impaling, Reach C. Roll HT or lose the use of the bitten limb and take a slow, ugly wound that will not close. Untreated it is often fatal days later rather than minutes.	16	1d-7 impaling	C

Traits (12)

Bestial
Cannot Speak
Cold-Blooded
Discriminatory Smell
Fangs
Infravision
Injury Tolerance (No Neck)
Night Vision 3
No Fine Manipulators
No Legs (Slithers)
Restricted Diet (Carnivore)
Vibration Sense (Air)

Skills (3)

16Brawling
17Stealth
11Tracking

Notes

GCS ancestry draft: gcs/viper-snake.gct
Independent build total: -95 points of racial traits plus 20 points of racial skills.
Answers the SRD heading(s): Poisonous Snake (SRD 5.1); Viper Snake (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: 1 kg. ST, Size Modifier and DR are checked against it; see the gurps-animal-sanity-check skill for the bands.
Movement: ground Move 6 (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 90 cm, which is the SM -2 row.
The 5.1 corpus prints this as 'Poisonous Snake' and the 3.5 corpus as 'Viper Snake'; both are this record.
Added after a post-hoc comparison against independent GURPS fan conversions of this creature: the Tracking skill, which a creature with Discriminatory Smell should always have. The comparison surfaced the gap; the build is still ours.

Encounter rating

CER1

Offense5

Protection-7

Threat tierminor

Appearing1

Wandering6

GCS v5 downloads

Where this one came from

Source record: Viper Snake [Monsters on Automatic, SRD coverage: snakes]
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): Poisonous Snake (SRD 5.1); Viper Snake (SRD 3.5).
Racial template: -95 points across 18 traits, plus 3 racial skill(s) worth 20 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.