Animal · 1 hex · SM -1 Giant Wolf Spider (Monsters on Automatic; answers SRD 5.1)
It builds no web. It waits in a hole with the lid held shut by one leg, and the first anyone knows is five feet of spider crossing open floor in two jumps. Faster than the web-builders, less armored, and much harder to see coming.
Attributes
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| BiteBite (16): 1d-3 impaling, Reach C. Roll HT or the bitten limb stiffens and the world goes gray at the edges for a few minutes. | 16 | 1d-3 impaling | C |
Traits (17)
- Bestial
- Cannot Speak
- Clinging
- Cold-Blooded
- Damage Resistance 1
- Extra Legs (Eight Legs)
- Fangs
- Horizontal
- Injury Tolerance (No Brain)
- Injury Tolerance (No Neck)
- Injury Tolerance (No Vitals)
- Night Vision 6
- No Fine Manipulators
- Peripheral Vision
- Restricted Diet (Carnivore)
- Super Jump 1
- Vibration Sense (Air)
Skills (2)
- 16Brawling
- 17Stealth
Notes
- Racial cost: -20 points of traits plus 16 points of skills.
- Body weight: 65 lb.
- Movement: ground Move 6 (primary).
Encounter rating
Tags
- monsters-on-automatic
- ai-generated
- doa-authored
- srd-5-1
- animal
- arthropod
- vermin
- forest
- underground
- ambusher
- venomous
GCS v5 downloads
Where this one came from
- Source record
- Giant Wolf Spider [Monsters on Automatic, SRD coverage: vermin and monstrous arthropods]
- 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): Giant Wolf Spider (SRD 5.1).
- Racial template: -20 points across 23 traits, plus 2 racial skill(s) worth 16 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/giant-wolf-spider.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 5 feet across the legs, which is the SM -1 row.
- Weaker than a spider of this size might suggest, deliberately: a hunting spider spends its build on speed, jump and stealth rather than on hauling prey.
- Added after a post-hoc comparison against independent GURPS fan conversions of this creature: Peripheral Vision. The comparison surfaced the gap; the build is still ours.
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.

