Magical Beast (Evil) · SM +0 Hellwasp Swarm [Monster Manual, page 238]
Attributes
ST1
DX12
IQ7
HT12
HP8
Will12
Per12
FP12
Basic Speed6
Basic Move1
Dodge9
DR0
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| StingNo attack roll and no active defense. Contact agent: the target automatically takes 1 point of toxic damage unless wearing sealed armor. Natural DR does not help unless the creature keeps eyes, mouth, nose and ears shut. Retreating or dodging and dropping a yard away avoids it. | no roll | 1 point toxic | C |
| Inhabit (Possession)Requires one minute of preparation in contact with the victim. The swarm parasitically possesses an SM-2 or larger creature and controls all its actions, or animates a corpse of up to 18 HP. An inhabited corpse grabs, lifts, strikes and throws at ST equal to its HP, uses the swarm's DX, and has Move equal to 18 minus the corpse's HP. Resolve as Possession with the Parasitic enhancement. | — | — | C |
Traits (4)
- Immunity to Noxious Fire Effects
- Infravision
- Night Vision 5
- No Fine Manipulators
Skills (1)
- 13Flight
Notes
- GCS ancestry draft: gcs/hellwasp-swarm.gct
- Source template total: 228 points.
- Library-rebuilt template total: 228 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.
- Swarm: the swarm is dispersed at 0 HP and destroyed at -HP; it cannot be slammed or grappled and is immune to crippling injuries (Diffuse, gnat-sized flying swarm). It seeps under doors and through screens, grates, clothing (2 seconds) and chinks in armor (5 seconds).
Encounter rating
CER37
Offense33
Protection4
Threat tierstandard
Appearing1
Wandering3
Tags
- srd-3-5
- magical-beast
- evil
GCS v5 downloads
Where this one came from
- Source record
- Hellwasp Swarm [Monster Manual, page 238]
- 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/hellwasp-swarm.gct
- Source template total: 228 points.
- Library-rebuilt template total: 228 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- Issue #5: the automatic contact sting and the Inhabit possession/corpse-animation ability were added from the source's stated mechanics. Possession is a save-or-disable effect that the baseline CER path does not price; see the encounter note on this record.
- CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 33, PR 4, CER 37, threat tier standard.
- Conversion baseline reported OR -3, PR 4, CER 1 (tier minor). The reviewed values come from the consumer CER implementation, which rounds damage once after the damage-type multiplier and credits ranged accuracy; the conversion baseline ceilinged the damage base first and ignored range.
- Encounter metadata derived (solitary): average number appearing 1, wandering weight 3. 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.