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Giant Octopus

Animal · minor threat

Giant Octopus bestiary portrait
Giant Octopus top-down encounter tokenGiant Octopus top-down flat-top hex token

Animal · SM +1 Giant Octopus (Enraged Eggplant; answers SRD 3.5, SRD 5.1)

An olive-violet mantle the size of a hay bale trailing eight colossal sucker-lined arms. It matches the rock it is lying against until it moves, takes hold of a limb or a hull with several arms at once, and pulls what it holds down towards the beak.

Attributes

ST12
DX13
IQ4
HT12
HP12
Will10
Per8
FP12
Basic Speed6.25
Basic Move2
Dodge9
DR0

Melee attacks

UsageLevelDamageReach
Tentacle GrappleTentacle Grapple (26): The tentacles are not very strong, but the octopus has many of them. Wrestling at DX+1 gives the octopus a ST score of 13 for the purpose of grappling. The octopus has Constriction Attack. Effective skill 26 includes a +14 bonus for using 8 tentacles at once. Reach C-2. The tentacles give +4 with tasks that require a firm grip (including climbing).26The tentacles are not very strong, but the octopus has many of them. Wrestling at DX+1 gives the octopus a ST score of 13 for the purpose of grappling. The octopus has Constriction Attack. Effective skill 26 includes a +14 bonus for using 8 tentacles at onceC-2
Sharp BeakSharp Beak (13): thrust 1d-2 large piercing. Reach C.13thrust 1d-2 large piercingC

Traits (16)

  • Amphibious
  • Chameleon 2
  • Cold-Blooded (50°)
  • Constriction Attack
  • Doesn’t Breathe (Gills)
  • Extra Arms 6 (Extra-Flexible; Foot Manipulators; Long 2)
  • Extra-Flexible Long (+2 SM) Foot Manipulators 2
  • Extra Legs (Eight Legs; Cannot Kick; Long 2)
  • Fearfulness
  • Good Grip 2
  • Injury Tolerance (No Neck)
  • Invertebrate
  • Peripheral Vision
  • Polarization Detection
  • Short Lifespan 2
  • Wild Animal (with Mute)

Skills (3)

  • 14Camouflage
  • 14Stealth
  • 14Wrestling

Notes

  • GCS ancestry draft: gcs/giant-octopus.gct
  • Source template total: 306 points.
  • Library-rebuilt template total: 306 points.
  • CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
  • Review attacks, special abilities, encounter frequency, treasure, grappling, and GCS modifiers before approval.
  • Ink: An octopus may fill a two-yard-radius area with black ink. No one can see into the affected area, and no one within the affected area can see anything; see p. B394 for combat rules. In addition, this ink cloud imposes a -4 penalty on Smell rolls. An octopus can use this ability only 4 times per day, and only in water or zero-G. Once created, the cloud persists for 10 seconds, drifting with the current.

Encounter rating

CER20
Offense14
Protection6
Threat tierminor
Appearing6
Wandering4

Tags

  • srd-3-5
  • srd-5-1
  • animal

GCS v5 downloads

Where this one came from
Source record
Giant Octopus
Source system
gurps_4e_fan_conversion / author_permission
Released under
cc_by_4_0
Conversion
0.2.0-reviewed
Review status
approved
Credit
Original GURPS conversion by Enraged Eggplant, from Monsters (May 11, 2024); adapted and republished with permission.
Description
Written by Dungeons on Automatic, released under cc_by_4_0
  • GCS ancestry draft: gcs/giant-octopus.gct
  • Source template total: 306 points.
  • Library-rebuilt template total: 306 points.
  • CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
  • Issue #5: 1 special ability construction(s) restored. No disabling construction on this record carries a cost the affliction term can score.
  • CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 14, PR 6, CER 20, threat tier minor.
  • Encounter metadata derived (gregarious): average number appearing 6, wandering weight 4. Encounter metadata derived for 0.2.0 from the reviewed threat tier and creature class (appearing: minor 4 / standard 2 / major 1 / severe 1, forced to 1 for solitary classes — including swarms, which are a single multi-body creature — and raised to 6 for gregarious minor creatures; wandering weight: minor 4 / standard 3 / major 2 / severe 1). The fan-conversion source states no appearing-in-numbers or wandering values, so these are derived, not source mechanics.
  • Lair, treasure, and grappling remain unpopulated in 0.2.0 by package policy: the authorized fan-conversion source states no lair, treasure, or grappling values, and review declines to invent them. See review/policy/0.2.0-empty-field-policy.md.
  • Description text is original Dungeons on Automatic prose written from this record's own converted statistics and from the project's art direction for the creature. It is not derived from the authorized fan-conversion source, which states no creature descriptions, and not from any SRD. It carries its own authorship and CC BY 4.0 terms in the description field. See review/policy/description-policy.md.
  • Review approved by automated-mechanical-review on 2026-07-26 (batch ee-2026-07-26-b4-special-mechanics); GCS fidelity check passed, DOA playability check passed.
  • Special-mechanics record. Mechanics the CER path cannot price are named per record in review/reports/cer-audit.md rather than folded into the number, and encounter counts are capped where a save-or-disable attack is present.

Enraged Eggplant GURPS monster conversions; used, adapted, and republished with unrestricted permission from the author. Portrait and tokens are AI-generated original art. Sources and credits.