Outsider (Fire) · SM -1 Steam Mephit [Monster Manual, page 184]
Attributes
ST7
DX13
IQ9
HT10
HP7
Will9
Per9
FP10
Basic Speed5.75
Basic Move5
Dodge8
DR0
Melee attacks
| Usage | Level | Damage | Reach |
|---|---|---|---|
| Blunt ClawsBlunt Claws (13): thrust 1d-2 crushing (KYOS: 1d-5 crushing), Reach C. | 13 | thrust 1d-2 crushing (KYOS: 1d-5 crushing) | C |
| Breath WeaponBreath Weapon (13): A 10-yard jet of hot steam erupts from the mephit’s mouth. It uses Innate Attack (Breath) to hit. Don’t apply range penalties; treat this as a long melee weapon rather than a ranged attack. It does 1d non-incendiary burning damage, and has a 1/2D range of 5 yards. If any damage penetrates the target’s DR, he must make a HT roll, at -1 per 2 points of injury or suffer from moderate pain (p. B428) for (20 – HT) minutes as his skin and eyes burn and itch. This ability costs 1 FP to use. | 13 | A 10-yard jet of hot steam erupts from the mephit’s mouth. It uses Innate Attack (Breath) to hit. Don’t apply range penalties; treat this as a long melee weapon rather than a ranged attack. It does 1d non-incendiary burning damage, and has a 1/2D range of 5 yards. If any damage penetrates the target’s DR, he must make a HT roll, at -1 per 2 points of injury or suffer from moderate pain (p. B428) for (20 – HT) minutes as his skin and eyes burn and itch. This ability costs 1 FP to use | — |
| Steam StormBy spending 3 FP, a steam mephit can create a storm of steam in the area around him. Every creature within 4 yards of him takes 2d non-incendiary burning damage. Treat it as large area injury for the purpose of DR. | — | 2d burning | 4 yards |
Traits (9)
- Curious (12)
- Doesn’t Eat or Drink
- Filter Lungs
- Flight (Winged)
- Immunity to Noxious Fire Effects
- Infravision
- Regeneration (Fast; Accessibility, Only if it is touching boiling water or is in a hot, humid area)
- Skinny
- Vulnerability (Cold, x2)
Skills (3)
- 15Aerobatics
- 13Brawling
- 13Innate Attack (Breath)
Notes
- GCS ancestry draft: gcs/steam-mephit.gct
- Source template total: 160 points.
- Library-rebuilt template total: 160 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.
- Vapor Blur: Once per hour, a steam mephit can surround himself with vapor. This reaches to a two-yard radius around the mephit. With care, it can include a few friends as well. Subtract 4 from any attempts to see the mephit using normal vision, Infravision, or Ladar; there is no resistance roll. Even if someone does manage to see the mephit, subtract 4 from any attack roll against him that relies on vision to hit. The mephit itself can see perfectly while using this ability. It activates this ability by taking a Concentrate maneuver. Each activation lasts for 1 minute.
Encounter rating
CER2
Offense6
Protection-4
Threat tierminor
Appearing4
Wandering4
Tags
- srd-3-5
- srd-5-1
- outsider
- fire
GCS v5 downloads
Where this one came from
- Source record
- Steam Mephit [Monster Manual, page 184]
- 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/steam-mephit.gct
- Source template total: 160 points.
- Library-rebuilt template total: 160 points.
- CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
- Issue #5: 2 special ability construction(s) restored (Steam Storm). 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 6, PR -4, CER 2, threat tier minor.
- Encounter metadata derived (default): average number appearing 4, 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.