Animal · 1 hex · SM -1 Giant Ant [Monsters on Automatic, SRD coverage: vermin and monstrous arthropods; answers Giant Ant (SRD 3.5)]
Waist-high, armoured in chitin the colour of old blood, and never encountered alone. Giant ants work a territory the way a farm works a field, and what one finds the nest knows within the hour. They do not threaten and they do not retreat; they simply keep arriving.
Attributes
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| MandiblesMandibles (13): 1d-1 cutting, Reach C. Shears rather than bites; it will take a finger off and carry it home. | 13 | 1d-1 cutting | C |
Traits (14)
- Bestial
- Cannot Speak
- Cold-Blooded
- Damage Resistance 3
- Discriminatory Smell
- Extra Legs (Six Legs)
- Gregarious
- Horizontal
- Injury Tolerance (No Brain)
- Injury Tolerance (No Neck)
- Injury Tolerance (No Vitals)
- No Fine Manipulators
- Sharp Teeth (Mandibles)
- Tunneling
Skills (2)
- 13Brawling
- 10Tracking
Notes
- GCS ancestry draft: gcs/giant-ant.gct
- Independent build total: -16 points of racial traits plus 6 points of racial skills.
- Answers the SRD heading(s): Giant Ant (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: 40 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 1.5 m nose to abdomen, which is the SM -1 row.
- ST looks high for 40 kg and is meant to: Basic Lift has to cover an ant carrying a load its own weight back to the nest, which is the one thing everybody knows ants do.
- DR is full armour. Chitin is a shell, and a scratch that would bypass thick hide does not bypass it.
- 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
Tags
- monsters-on-automatic
- ai-generated
- doa-authored
- srd-3-5
- animal
- arthropod
- vermin
- hive
- underground
- wandering-encounter
GCS v5 downloads
Where this one came from
- Source record
- Giant Ant [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 Ant (SRD 3.5).
- Racial template: -16 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.
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.

