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Template Grafts | Universal Monster Rules

Starmetal Eater

Source Alien Archive 4 pg. 116
Strange protoplasmic pests that subsist on the rarest of metals, starmetal eaters usually remain microscopic and innocuous. Yet when these creatures gorge themselves on a rich vein of naturally occurring starmetal or even items made of starmetal alloy—either of which they can detect at great distances—they experience a swift growth spurt and can reach several feet in diameter. Each starmetal eater fixates its diet on one specific type of starmetal, gaining strange abilities as its appearance and essence are suffused with its metal of choice.

Aliens in the "Starmetal Eater" Family

Abysium Eater5
Horacalcum Eater13

Starmetal Eater, Abysium Eater

Source Alien Archive 4 pg. 116

Abysium Eater CR 5

XP 1,600
N Small ooze
Init +2; Senses blindsense (scent [abysium only]) 1 mile, blindsight (vibration) 60 ft., sightless; Perception +11
Aura irradiation (medium, DC 13, 20 ft.)


HP 75
EAC 17; KAC 19
Fort +9; Ref +5; Will +2
Immunities ooze immunities, radiation


Speed 20 ft., climb 20 ft.
Melee slam +14 (1d6+10 B plus fallout susceptibility; critical shear shielding)
Offensive Abilities fallout susceptibility, shear shielding


STR +5; DEX +2; CON +3; INT —; WIS +0; CHA +0
Skills Athletics +16
Other Abilities mindless


Environment any
Organization solitary or pair

Special Abilities

Fallout Susceptibility (Ex) A creature hit by an abysium eater’s slam attack takes a –1 penalty to its next saving throw against radiation sickness attempted within the next 24 hours. This penalty stacks, to a maximum equal to half the abysium eater’s CR (–2 for a typical specimen).
Irradiation (Ex) An abysium eater emanates medium radiation in a 20-foot radius. This radiation suffuses an area in 20-foot increments. An abysium eater is considered a natural radioactive material for the purposes of spells that remove radiation, such as remove radioactivity.
Shear Shielding (Ex) When an abysium eater critically hits a creature wearing armor that grants immunity to radiation levels, the target loses that radiation immunity (Reflex DC 13 negates), though the armor continues to provide its saving throw bonus against radiation as normal. This damage persists until the armor is repaired.

Extra Content

The following extra content was found for this creature:
- Abysium Eater (Starmetal Eater ) Graft Template
- Horacalcum Eater (Starmetal Eater) Graft Template
- Inubrix Eater (Starmetal Eater) Graft Template
- Noqual Eater (Starmetal Eater) Graft Template
- Siccatite Eater (Starmetal Eater) Graft Template