Harpy - Dungeons on Automatic Bestiary

Monstrous Humanoid · SM +0 Harpy [Monster Manual, page 150]

Attributes

ST10

DX11

IQ9

HT10

HP10

Will10

Per10

FP10

Basic Speed5.25

Basic Move5

Dodge8

DR—

Melee attacks

Usage	Level	Damage	Reach
Knobbed ClubKnobbed Club (12): swing 1d+1 crushing, Reach 1.	12	swing 1d+1 crushing	1
Sharp ClawsSharp Claws (12): thrust 1d-3 cutting, Reach C.	12	thrust 1d-3 cutting	C
Captivating SongCaptivating Song (14): A harpy can sing a captivating song that affects creatures within 16 yards of her that can hear the song. She can exclude any creatures from this effect. To affect each victim, the harpy must win a Quick Contest of IQ with the victim’s Will, using normal range penalties (p. B550). Apply a -1 penalty per creature already under harpy’s control. If the harpy loses, she cannot attempt to control that victim again for 24 hours, and he feels a sense of mental coercion emanating from the harpy. On a critical failure, the harpy also loses control of anyone else under the influence of this ability!	14	A harpy can sing a captivating song that affects creatures within 16 yards of her that can hear the song. She can exclude any creatures from this effect. To affect each victim, the harpy must win a Quick Contest of IQ with the victim’s Will, using normal range penalties (p. B550). Apply a -1 penalty per creature already under harpy’s control. If the harpy loses, she cannot attempt to control that victim again for 24 hours, and he feels a sense of mental coercion emanating from the harpy. On a critical failure, the harpy also loses control of anyone else under the influence of this ability!	—

Traits (8)

Acute Hearing 3
Callous
Infravision
Odious Racial Habit (Eats sapient beings)
Penetrating Voice
Sadism (12)
Social Stigma (Monster)
Voice

Skills (5)

12Acting
12Aerobatics
12Axe/Mace
12Brawling
14Singing

Notes

GCS ancestry draft: gcs/harpy.gct
Source template total: 134 points.
Library-rebuilt template total: 134 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.

Encounter rating

CER6

Offense6

Protection0

Threat tierminor

Appearing6

Wandering4

GCS v5 downloads

Where this one came from

Source record: Harpy [Monster Manual, page 150]
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/harpy.gct
Source template total: 134 points.
Library-rebuilt template total: 134 points.
CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 6, PR 0, CER 6, 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-b6-partial-stats); GCS fidelity check passed, DOA playability check passed.
Typical Stats parse is incomplete because the source states the missing field as N/A or as a conditional value. Missing DR and Dodge are scored as zero, so this record's protection rating is a floor; recorded in review/reports/cer-audit.md.

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.