Swarm · 1 hex · SM +0 Swarm of Poisonous Snakes (Monsters on Automatic; answers SRD 5.1)
A den's worth of vipers, disturbed all at once and coming out over each other in every direction. There is no way past them that does not involve being bitten several times, and the venom does not care that each snake delivered only a little.
Attributes
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| Swarming BitesSwarming Bites: 1d-1 impaling, Reach C. No attack roll and no defense. Roll HT at a penalty for the sheer number of doses; failure means the limb goes, then the breathing does. This is the most lethal thing any of these swarms does, and it is entirely chemical. | no roll | 1d-1 impaling | C |
Traits (11)
- Bestial
- Cannot Speak
- Cold-Blooded
- Discriminatory Smell
- Fangs
- Infravision
- Injury Tolerance (Diffuse)
- No Fine Manipulators
- No Legs (Slithers)
- Restricted Diet (Carnivore)
- Vibration Sense (Air)
Notes
- Racial cost: 21 points of traits plus 0 points of skills.
- Body weight: 45 lb.
- Movement: ground Move 6 (primary).
Encounter rating
Tags
- monsters-on-automatic
- ai-generated
- doa-authored
- srd-5-1
- swarm
- animal
- reptile
- swamp
- underground
- venomous
GCS v5 downloads
Where this one came from
- Source record
- Swarm of Poisonous Snakes [Monsters on Automatic, SRD coverage: swarms]
- 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): Swarm of Poisonous Snakes (SRD 5.1).
- Racial template: 21 points across 17 traits, plus 0 racial skill(s) worth 0 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/swarm-of-poisonous-snakes.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.
- One hex of swarm; the individual is the Viper Snake.
- The venom is priced at 40 points and carries most of the rating. That is correct — the bites themselves are trivial and the doses are what kill.
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.

