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Cave.png Burrower l.png


Role Adult burrowers
Location Burrower Caves
Abandoned Building
Upper Caves
Hathor Mine
Deep Caverns
Loot Burrower Carapace
Burrower Ocarina (oddity)
Burrower Poison Gland
Insectoid Salivarium
Abilities Poisonous ranged attack
Lays spawn eggs
Combat Stats
Combat Stats Level: 7
Damage: 17-28
Action Points: 50
Initiative: 20
Detection: 70
Base Abilities Strength: 12
Dexterity: 8
Agility: 7
Constitution: 14
Perception: 8
Will: 4
Intelligence: 3
Resistances Mechanical: 30% / 10
Heat: 10% / 5
Cold: 0% / 0
Electricity: 0% / 0
Acid: 0% / 0
Energy: 0% / 0
Bio: 0% / 0


It's one nasty creature that digs around, laying eggs all over the place. They are more numerous deeper underground, but you can still find a few roaming the Lower Underrail and the surrounding caves. If you meet one, be careful. It will spit thick hard spines at you that are coated with poison.

Quinton on burrowers

Burrowers are one of the tougher creatures lurking in Underrail. They are egg-laying insectoids that can burrow through solid rock, whence their name came from. They are not a very common sight in Lower Underrail, but apparently they are more numerous in Deep Caverns.

They come in four varieties - adult burrowers, burrower warriors, burrower spawn and burrower eggs. Regular adult burrowers and spawn may drop poison glands and insectoid salivariums as loot.


Adult burrowers. Real mean creatures. Tough carapace, dangerous attacks and ability to summon spawn.

They defend themselves by spitting poisonous thorns and they also lay eggs, which will burst into burrower spawn surprisingly quickly.

Burrower Warrior

For details, see Burrower Warrior.

A different kind of adult burrower, they are the soldiers of the hive. Warriors are much tougher and stronger than regular burrowers, but lack poison and are unable to lay eggs. This is the rarest of the four, on all difficulties under DOMINATING found only in Deep Caverns and Hephaestus Research.


For details, see Spawn.

Burrower spawn are smaller, young burrowers. Nowhere nearly as dangerous as fully-grown burrowers, but they tend to appear in groups and can be spawned by adult burrowers.


For details, see Egg.

These are the eggs laid by adult burrowers.

Burrower hives

Burrowers seem to be territorial creatures and once they dig their way into a suitable location, they form large hives filled with burrower eggs. If you encounter clusters of bright red eggs, beware. You have located a burrower hive, and burrowers are close by.

Two major burrower hives can be found in the GMS compound and Abandoned Building, with some smaller infestations in Lower Underrail.


Various burrower portraits and sprites.