Animal · 3 hexes · SM +2 Crocodile (Monsters on Automatic; answers SRD 3.5, SRD 5.1)
Thirteen feet of armored reptile lying in the shallows, looking exactly like a waterlogged log. It takes prey at the water's edge, drags it under and drowns it, and its hide turns a spear that would go through anything short of a dragon. On land it is slow enough to outrun. In the water it is not losing.
Attributes
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| BiteBite (12): 2d-2 cutting, Reach C. Closes and holds; the crocodile does not let go to bite again. | 12 | 2d-2 cutting | C |
| Death RollDeath Roll: Reach C. Against a target it already has in its jaws, the crocodile rolls its whole body. No attack roll; the victim rolls ST or DX to break the grip or is dragged under and drowned. | — | — | C |
Traits (17)
- Amphibious
- Bestial
- Bloodlust (12)
- Breath-Holding 3
- Cannot Speak
- Cold-Blooded
- Damage Resistance 4
- Enhanced Move 0.5 (Water)
- Extra Legs (Four Legs)
- Horizontal
- Nictitating Membrane 2
- No Fine Manipulators
- Peripheral Vision
- Rapid Healing
- Resistant to Disease (+3)
- Restricted Diet (Carnivore)
- Sharp Teeth
Skills (4)
- 12Brawling
- 12Stealth
- 13Swimming
- 11Tracking
Notes
- Racial cost: -28 points of traits plus 18 points of skills.
- Body weight: 750 lb.
- Movement: ground Move 5; water Move 5, 7 at a sprint (primary).
Encounter rating
Tags
- monsters-on-automatic
- ai-generated
- doa-authored
- srd-5-1
- srd-3-5
- animal
- reptile
- aquatic
- swamp
- ambusher
- predator
GCS v5 downloads
Where this one came from
- Source record
- Crocodile [Monsters on Automatic, SRD coverage: mundane birds, fish and aquatic animals]
- 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): Crocodile (SRD 5.1); Crocodile (SRD 3.5).
- Racial template: -28 points across 22 traits, plus 4 racial skill(s) worth 18 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/crocodile.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.
- Thirteen feet nose to tail puts it on the SM +2 row. Length, not mass, is what the published table reads.
- ST from Basic Lift: it drags an 175 lb. carcass into the water, which is the job its strength has to do.
- DR is full armor rather than Tough Skin: osteoderms are bone plates, not thick hide.
- Added after a post-hoc comparison against independent GURPS fan conversions of this creature: Peripheral Vision; Rapid Healing; Resistant To Disease; the Tracking skill, which a creature with Discriminatory Smell should always have. 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.

