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Deinonychus

Animal · minor threat

Deinonychus bestiary portrait
Deinonychus top-down encounter tokenDeinonychus top-down flat-top hex token

Animal · 2 hexes · SM +1 Deinonychus (Monsters on Automatic; answers SRD 3.5)

Man-high, feathered and far too interested in the party. Deinonychus hunt in company, and they are among the very few animals that will work out where a group is going and be waiting there. They come in from more than one side. The one making noise is not the one to watch.

Attributes

ST13
DX14
IQ3
HT12
HP13
Will8
Per10
FP12
Basic Speed6.5
Basic Move6
Dodge9
DR1

Melee attacks

UsageLevelDamageReach
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.161d+1 cuttingC
BiteBite (16): 1d-1 cutting, Reach C.161d-1 cuttingC

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

  • Racial cost: -37 points of traits plus 14 points of skills.
  • Body weight: 150 lb.
  • Movement: ground Move 6, 9 at a sprint (primary).
  • The pack is the threat. Run these as a coordinated group.

Encounter rating

CER22
Offense15
Protection7
Threat tierminor
Appearing4
Wandering4

Tags

  • monsters-on-automatic
  • ai-generated
  • doa-authored
  • srd-3-5
  • animal
  • reptile
  • dinosaur
  • forest
  • plains
  • predator
  • pack
  • prehistoric

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.
  • 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/deinonychus.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 ten feet 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.
  • 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.

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.