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The defiler

The defiler was a zerg breed that used toxic substances to support other zerg forces.


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A defiler during the Great War

The defiler was a relatively rare zerg breed, resembling a silverfish in appearance and acting akin to a 'cancer factory' in function.[1] Its core genus, if it had one, is unknown, as the defiler contained the DNA of all other zerg breeds.[2] It was created from festering, carcinogenic pathogens that were, in essence, leftover genetic chains from other zerg strains.[3] It used this genetic material to synthesize virus-like biochemicals.[1] These biochemicals were extremely hazardous, resistant to the most effective anti-toxins, and, paradoxically, dangerous even to the zerg.[1] A large amount of energy was expended in the production of these chemicals,[4] and defilers were known to cannibalize other zerg to fuel the metasynaptic processes that generated the compounds,[2] often accompanied by zergling escorts for this very reason.[1] They could also recharge the metasynaptic processes through burrowing.[4] Defilers possessed the ability to extract and process information from terran minds.[5]

The defiler's body was host to countless small organisms that lived on the carapace, constantly feeding on each other.[2] The defiler could spontaneously launch a number of these creatures to swarm a location that make it difficult to target anything under the ensuing cloud. In addition, defilers could produce corrosive spores and hurl them at a target area, the spores exploding in a dense cloud. The highly toxic mist that resulted corroded anything it touched.[2] The spores were also prone to igniting due to a flammable accelerant contained in them.[6]

Defiler SC1 Art2

A defiler

Moving with a slow, intelligent slither, defilers were highly vulnerable to any form of counterattack (especially long-range or air assaults) and as such, usually stayed at the rear of zerg formations.[4] The defiler evolved into obselescence after the Brood War. However, with the need for a specialized support strain, the zerg revisited the defiler template and perfected it with genetic data from an unknown species, preserving its core functions while excising its unnecessary lethality.[3] The result was the viper.[7]

In spite of being phased out of the swarm, after the End War defilers were among the ranks of feral zerg being lured to Terran Dominion colonies by the Defenders of Man.[8]

Game UnitEdit


For StarCraft gameplay information see: Defiler (StarCraft).

StarCraft IIEdit

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The defiler model

In StarCraft II multiplayer, the defiler has been replaced by the infestor.[9] The viper also has similar traits.

A model of the defiler is available in the Galaxy Map Editor.

Wings of LibertyEdit

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Defiler bones

The bones of defilers appear in Wings of Liberty as zerg research subjects on the level The Great Train Robbery.[10]

Heart of the SwarmEdit

An untextured defiler model is included in the Galaxy Map Editor for StarCraft II: Heart of the Swarm.[11]

Nova Covert Ops Edit

Defiler SC2-NCO Game1

The defiler model as of Nova Covert Ops

Defilers appear in the Nova Covert Ops mission "Sudden Strike," and use their dark swarm ability to cover the zerg attack waves from ranged attacks.[8]

Known Defilers Edit

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A defiler

Variant StrainsEdit


References Edit

  1. 1.0 1.1 1.2 1.3 Defiler. StarCraft Compendium. Accessed on 2008-02-07
  2. 2.0 2.1 2.2 2.3 Underwood, Peter, Bill Roper, Chris Metzen and Jeffrey Vaughn. StarCraft (Manual). Irvine, Calif.: Blizzard Entertainment, 1998.
  3. 3.0 3.1 2015-01-16, Viper Science. Blizzard Entertainment, accessed on 2014-01-20
  4. 4.0 4.1 4.2 2015-09-18, NYCC 2015 – James Waugh’s StarCraft Field Manual Signing Schedule. Blizzplanet, accessed on 2015-09-23
  5. StarCraft: Retribution. WizardWorks Software. Zerg campaign: “Dynamic Evolution, mission 1: "Ascension” (in English). 1999.
  6. Gerrold, David (w), Fernando Heinz Furukawa (p, i). StarCraft: Ghost Academy: Volume 2 (paperback binding). Tokyopop, August 10, 2010. ISBN 978-1427-81613-9.
  7. Unit Guide: Viper, Blizzard Entertainment. Accessed on 2014-05-12
  8. 8.0 8.1 Blizzard Entertainment. StarCraft II. (Activision Blizzard). PC. Mission: Nova Covert Ops, Sudden Strike (in English). 2016-03-29.
  9. Medievaldragon. 2008-03-10, StarCraft II-Zerg Unveiled. Blizzplanet. Accessed on 2008-03-10
  10. Blizzard Entertainment. StarCraft II: Wings of Liberty. (Activision Blizzard). PC. Mission: Wings of Liberty, The Great Train Robbery (in English). 2010-07-27.
  11. Blizzard Entertainment. StarCraft II Map Editor. (Activision Blizzard) (in English). July 27, 2010

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