Giant Spider

Animal · 2 hexes · SM +1 Giant Spider (Monsters on Automatic; answers SRD 3.5: Monstrous Spider, SRD 5.1)

A body the size of a large dog on a ten-foot span of legs, sitting motionless at the edge of its web where the light does not reach. It reads the whole web as one sense. It wants somebody held still, and most of that was arranged before anyone thought to look up.

Attributes

ST16

DX13

IQ2

HT12

HP16

Will8

Per10

FP12

Basic Speed6.25

Basic Move6

Dodge9

DR2

Melee attacks

Usage	Level	Damage	Reach
BiteBite (15): 1d impaling, Reach C. Delivered to something already wrapped. Roll HT or go slack — the venom is meant to stop prey struggling, not to kill it outright.	15	1d impaling	C
WebWeb: Reach 5. Thrown as a sheet from ambush. No damage; the target is stuck fast and must win a Quick Contest against the web's ST to tear free, and everything the spider does afterwards is against a target that cannot move. The web itself has DR 3 and can be cut or burned free; fire clears a hex of it in a turn and is by far the fastest answer.	—	—	5

Traits (16)

• Bestial
• Cannot Speak
• Clinging
• Cold-Blooded
• Damage Resistance 2
• Extra Legs (Eight Legs)
• Fangs
• Horizontal
• Injury Tolerance (No Brain)
• Injury Tolerance (No Neck)
• Injury Tolerance (No Vitals)
• Night Vision 5
• No Fine Manipulators
• Peripheral Vision
• Restricted Diet (Carnivore)
• Vibration Sense (Air)

Skills (2)

• 15Brawling
• 15Stealth

Notes

• Racial cost: 8 points of traits plus 12 points of skills.
• Body weight: 200 lb.
• Movement: ground Move 6 (primary).
• The 3.5 corpus prints 'Monstrous Spider' as a family of sizes rather than one creature; this record is the size that matches the 5.1 giant spider.

Encounter rating

CER40

Offense30

Protection10

Threat tierstandard

Appearing2

Wandering4

Tags

• monsters-on-automatic
• ai-generated
• doa-authored
• srd-5-1
• srd-3-5
• animal
• arthropod
• vermin
• forest
• underground
• ambusher
• trapper
• venomous

GCS v5 downloads

• ↓ Character sheet (.gcs)Open directly in GCS
• ↓ Ancestry template (.gct)Apply to any character

Where this one came from

Source record

Giant 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 Spider (SRD 5.1); Monstrous Spider (SRD 3.5).
• Racial template: 8 points across 22 traits, plus 2 racial skill(s) worth 12 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-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.
• Ten feet across the leg span, which is the SM +1 row; the body is nearer a foot across.
• ST from Basic Lift: it hauls a wrapped human up a web line.
• The web is priced by its binding ST rather than by damage, which is how the rating path sees an ability that does no injury at all.
• The web can be attacked and it burns. A binding a party cannot attack is a different creature from one they can burn.
• The 3.5 'Monstrous Spider' heading is a size family, not a distinct creature. It is dispositioned onto this record; its other sizes belong to the variant batch, not here.
• Added after a post-hoc comparison against independent GURPS fan conversions of this creature: Peripheral Vision, and the web's durability and flammability, which the outside conversions all state and this build did not. The comparison surfaced the gaps; the build is still ours.