Steam Mephit

Outsider (Fire) · SM -1 Steam Mephit (Enraged Eggplant; answers SRD 3.5, SRD 5.1)

A pale pewter-grey mephit seamed with copper heat lines, its wings clouded with vapour trapped inside the membrane. It is the most self-important of the family, and it breathes scalding steam at anyone who fails to take it seriously.

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, Reach C.	13	thrust 1d-2 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

• ↓ Character sheet (.gcs)Open directly in GCS
• ↓ Ancestry template (.gct)Apply to any character

Where this one came from

Source record

Steam Mephit

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.

Description

Written by Dungeons on Automatic, released under cc_by_4_0

• 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.
• Description text is original Dungeons on Automatic prose written from this record's own converted statistics and from the project's art direction for the creature. It is not derived from the authorized fan-conversion source, which states no creature descriptions, and not from any SRD. It carries its own authorship and CC BY 4.0 terms in the description field. See review/policy/description-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.