Mutant Fly: Difference between revisions

Latest revision as of 19:37, 12 January 2026

Mutant Fly

Information
Spawns In:	Mutant Bug Lair, Skull Cavern
Floors:	N/A
Killable:	Yes
Base HP:	66
Base Damage:	12
Base Def:	1
Speed:	2
XP:	10
Variations:	Cave Fly Cave Fly (dangerous)
Drops:	Ancient Seed (0.5%) Bug Meat (90%) Dwarf Scroll I (0.5%) Dwarf Scroll IV (0.1%) White Algae (2%) If reached bottom of Mines: Diamond (0.05%) Prismatic Shard (0.05%)

{{#seo:

|keywords=Stardew Valley Wiki, Stardew Valley, Mutant Fly, gift |site_name=Stardew Valley Wiki |type=article |title=Mutant Fly - Stardew Valley Wiki }} Mutant Flies are an enemy found in the Mutant Bug Lair and on Prehistoric Floors in the Skull Cavern. 80 cave insects (any type) need to be killed for the Monster Eradication Goal at the Adventurer's Guild.

They can hatch from Mutant Grubs if the player gets close and allows it to enter its cocoon phase. Mutant Grubs hatch shortly after entering their cocoon into Mutant Flies.

Behavior

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.

Strategy

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

History

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

Monsters
Mines	Bats • Bug • Cave Fly • Duggy • Dust Sprite • Ghost • Grub • Lava Crab • Metal Head • Rock Crab • Shadow Brute • Shadow Shaman • Skeleton • Slimes • Squid Kid • Stone Golem
Dangerous Mines	Bat (dangerous) • Blue Squid • Bug (dangerous) • Carbon Ghost • Cave Fly (dangerous) • Duggy (dangerous) • Dust Sprite (dangerous) • Frost Bat (dangerous) • Grub (dangerous) • Haunted Skull (dangerous) • Lava Crab (dangerous) • Metal Head (dangerous) • Putrid Ghost • Rock Crab (dangerous) • Shadow Brute (dangerous) • Shadow Shaman (dangerous) • Shadow Sniper • Skeleton (dangerous) • Skeleton Mage • Slimes (dangerous) • Spider • Squid Kid (dangerous) • Stick Bug • Stone Golem (dangerous)
Quarry Mine	Copper Slime • Haunted Skull • Iron Slime
Skull Cavern	Armored Bug • Big Slime • Carbon Ghost • Iridium Bat • Iridium Crab • Lava Bat • Mummy • Pepper Rex • Purple Slime • Serpent
Dangerous Skull Cavern	Armored Bug (dangerous) • Mummy (dangerous) • Royal Serpent • Slime (dangerous)
Bug Lair	Mutant Fly • Mutant Grub
The Farm	Iridium Golem • Truffle Crab • Wilderness Golem
Volcano Dungeon	Dwarvish Sentry • False Magma Cap • Hot Head • Lava Lurk • Magma Duggy • Magma Sparker • Magma Sprite • Tiger Slime

@@ Line 9: / Line 9: @@
 |spd        = 2
 |exp        = 10
-|variations = {{name|Cave Fly}}{{name|Cave Fly Dangerous}}
+|variations = {{Name|Cave Fly}}{{Name|Cave Fly Dangerous}}
-|drops      = {{name|Ancient Seed|0.5%}}{{name|Bug Meat|90%}}{{name|Dwarf Scroll I|0.5%}}{{name|Dwarf Scroll IV|0.1%}}{{name|White Algae|2%}}
+|drops      = {{Name|Ancient Seed|0.5%}}{{Name|Bug Meat|90%}}{{Name|Dwarf Scroll I|0.5%}}{{Name|Dwarf Scroll IV|0.1%}}{{Name|White Algae|2%}}
 }}
 '''Mutant Flies''' are an [[Monsters|enemy]] found in the [[Mutant Bug Lair]] and on [[Skull Cavern#Prehistoric Floors|Prehistoric Floors]] in the [[Skull Cavern]]. 80 cave insects (any type) need to be killed for the [[Adventurer's Guild#Monster Eradication Goals|Monster Eradication Goal]] at the [[Adventurer's Guild]].