Shrieker - Dungeons on Automatic Bestiary

Fungus · SM +0 Shrieker [Monster Manual, page 113]

Attributes

ST0

DX0

IQ0

HT11

HP10

Will6

Per8

FP11

Basic Speed2.75

Basic Move0

Dodge—

DR1

Melee attacks

Usage	Level	Damage	Reach
Shriek (alarm, no damage)Not an attack. Movement within 4 yards, once sensed by the fungus's Vibration Sense (Air), triggers a piercing 10-second sound that imposes -8 to Hearing on everyone within 4 yards. It deals no damage and allows no defense because there is nothing to defend against; its danger is that it attracts whatever lives nearby. The shrieker is sessile, blind, deaf and mute and cannot pursue or harm anyone.	—	—	4-yard emanation

Traits (16)

Bestial
Blindness
Cannot Learn
Deafness
Doesn’t Breathe (Oxygen Absorption)
Injury Tolerance (Homogenous, No Blood, No Eyes, No Head, No Neck)
Immunity to Metabolic Hazards
Immunity to Mind Control
Mute
No Legs (Sessile)
No Manipulators
Numb
Reduced Consumption 4 (Cast-Iron Stomach)
Short Lifespan 3
Slow Eater
Vibration Sense (Air)

Notes

GCS ancestry draft: gcs/shrieker.gct
Source template total: -520 points.
Library-rebuilt template total: -520 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

CER1

Offense-5

Protection-2

Threat tierminor

Appearing1

Wandering4

GCS v5 downloads

Where this one came from

Source record: Shrieker [Monster Manual, page 113]
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/shrieker.gct
Source template total: -520 points.
Library-rebuilt template total: -520 points.
CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
Issue #5: adjudicated as an intentional passive hazard rather than an extraction failure. The shrieker has no offensive mechanics in the source; its alarm shriek is recorded as an explicit non-damaging entry so the empty attack list is no longer unexplained. CER and threat tier remain at the low end by design.
CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR -5, PR -2, CER 1, threat tier minor.
Encounter metadata derived (solitary): average number appearing 1, 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-b3-cer-tails); GCS fidelity check passed, DOA playability check passed.
CER tail record. The rating was recomputed through the consumer CER path and the tail was read against package peers in review/reports/cer-audit.md; a floor of 1 reflects a genuinely feeble creature and a severe rating tracks the record's own HP, DR and damage.

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.