Cave Fly (dangerous)

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Cave Fly (dangerous)
Cave Fly Dangerous.png
Spawns In: Dangerous Mines
Floors: 41-69
Killable: Yes
Base HP: 266
Base Damage: 13-15
Base Def: 2
Speed: 2
XP: 10
Variations: Cave Fly.png Cave FlyMutant Fly.png Mutant Fly
Drops: Ancient Seed.png Ancient Seed (0.5%)Bug Meat.png Bug Meat (90%)Dwarf Scroll I.png Dwarf Scroll I (0.5%)Dwarf Scroll IV.png Dwarf Scroll IV (0.1%)White Algae.png White Algae (2%)

If reached bottom of Mines:

Diamond.png Diamond (0.05%)Prismatic Shard.png Prismatic Shard (0.05%)

Cave Flies (dangerous) are an enemy found in The Mines after activating the Shrine of Challenge or during the Danger In The Deep quest. 80 cave insects (any type) need to be killed for the Monster Eradication Goal at the Adventurer's Guild.

Dangerous Grubs hatch into Dangerous Cave Flies shortly after entering their cocoon phase, during which time they are invulnerable.


They will fly towards the player (including through walls) at high speeds and deal damage on contact. They will then loop around for another pass.


Stand still and swing with a weapon that has high knockback right before the fly makes contact.


  • 1.5: Introduced.
  • 1.6: Changed Monster Eradication Goal for cave insects from 125 to 80.