Deinonychus - Dungeons on Automatic Bestiary

Animal · 2 hexes · SM +1 Deinonychus [Monsters on Automatic, SRD coverage: dinosaurs and prehistoric beasts; answers Deinonychus (SRD 3.5)]

Man-high, feathered, and far too interested. Deinonychus hunt in company and are the only animal in this batch that will try to work out where a party is going. They come in from more than one side, and the one making noise is not the one that matters.

Attributes

ST13

DX14

IQ3

HT12

HP13

Will8

Per10

FP12

Basic Speed6.5

Basic Move6

Dodge9

DR1

Melee attacks

Usage	Level	Damage	Reach
Sickle ClawSickle Claw (16): 1d+1 cutting, Reach C. The inner toe claw, brought down while the animal holds on with its hands and jaws. Cannot parry.	16	1d+1 cutting	C
BiteBite (16): 1d-1 cutting, Reach C.	16	1d-1 cutting	C

Traits (14)

Bestial
Bloodlust (12)
Cannot Speak
Combat Reflexes
Damage Resistance 1 (Tough Skin)
Discriminatory Smell
Enhanced Move 0.5 (Ground)
Gregarious
Horizontal
Night Vision 3
No Fine Manipulators
Restricted Diet (Carnivore)
Sharp Teeth
Talons (Sickle Claws)

Skills (4)

16Brawling
15Jumping
15Stealth
11Tracking

Notes

GCS ancestry draft: gcs/deinonychus.gct
Independent build total: -37 points of racial traits plus 14 points of racial skills.
Answers the SRD heading(s): Deinonychus (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: 70 kg. ST, Size Modifier and DR are checked against it; see the gurps-animal-sanity-check skill for the bands.
Movement: ground Move 6, 9 at a sprint (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 three metres nose to tail, which is the SM +1 row; most of that is tail.
ST from Basic Lift: it holds down and tears apart something its own size.
The pack is the threat. Run these as a coordinated group.
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

CER22

Offense15

Protection7

Threat tierminor

Appearing4

Wandering4

GCS v5 downloads

Where this one came from

Source record: Deinonychus [Monsters on Automatic, SRD coverage: dinosaurs and prehistoric beasts]
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): Deinonychus (SRD 3.5).
Racial template: -37 points across 20 traits, plus 4 racial skill(s) worth 14 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.