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This is an overview article which contains background information and cross-game comparisons. For game-specific information and stats, see the articles linked on the right.
Gameplay articles
Fallout 3Bloatfly
Fallout: New VegasBloatfly
Legendary bloatfly Gametitle-FNV OWB
Fallout 4Bloatfly
Black bloatfly
Festering bloatfly
Glowing bloatfly
Fallout 76Bloatfly
Black bloatfly
Festering bloatfly
Glowing bloatfly
Loathsome bloatfly Gametitle-FO76 NW
Venomous bloatfly Gametitle-FO76 NW
Vile bloatfly Gametitle-FO76 NW
Deadly bloatfly Gametitle-FO76 NW
Scorched bloatfly

A bloatfly is a common mutated pest resembling an oversized blow-fly, often found in the Capital Wasteland, the Mojave Wasteland, the Commonwealth and Appalachia.




The bloatfly is a giant mutated blowfly. Bloatflies attack at long range by peppering their prey with spine-bedecked larva launched from its abdomen. They tend to attack in groups, and their ability to attack from a distance can make them significantly more dangerous than radroaches.


  • Bloatflies can also be seen as a smaller species found around dead carcasses. It is not known why these did not mutate to a larger size.
  • When killed by the player character at higher levels they will give no experience points, much like the radroach.
  • Research by the Enclave suggests that the bloatfly is a mutation of the tabanus horse fly.


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