Octopus - Dungeons on Automatic Bestiary

Animal · SM -1 Octopus [Monster Manual, page 276]

Attributes

ST6

DX13

IQ4

HT12

HP6

Will10

Per8

FP12

Basic Speed6.25

Basic Move2

Dodge9

DR0

Melee attacks

Usage	Level	Damage	Reach
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 7 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. The tentacles give +4 with tasks that require a firm grip (including climbing).	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 7 for the purpose of grappling. The octopus has Constriction Attack. Effective skill 26 includes a +14 bonus for using 8 tentacles at once	C
Sharp BeakSharp Beak (13): thrust 1d-5 large piercing (KYOS: 1d-7 large piercing). Reach C.	13	thrust 1d-5 large piercing (KYOS: 1d-7 large piercing)	C

Traits (16)

Amphibious
Chameleon 2
Cold-Blooded (50°)
Constriction Attack
Doesn’t Breathe (Gills)
Extra Arms 6 (Extra-Flexible; Foot Manipulators)
Extra-Flexible Foot Manipulators 2
Extra Legs (Eight Legs; Cannot Kick)
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/octopus.gct
Source template total: 68 points.
Library-rebuilt template total: 68 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

CER14

Offense14

Protection0

Threat tierminor

Appearing6

Wandering4

GCS v5 downloads

Where this one came from

Source record: Octopus [Monster Manual, page 276]
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.

GCS ancestry draft: gcs/octopus.gct
Source template total: 68 points.
Library-rebuilt template total: 68 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 0, CER 14, 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.
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.