Infestor
subversion strain of the Zerg Swarm
The infestor is a burrowing Zerg support strain evolved from the borbu matriarch, capable of moving while burrowed, seizing control of enemies with a neural parasite, and disgorging infested marines and larvae on the battlefield.
The infestor was one of the more insidious strains of the Zerg Swarm, a burrowing support creature in use by the Zerg by 2503. Where most Zerg strains overwhelm an enemy through force, the infestor worked through subversion, seizing control of hostile minds, regurgitating infested soldiers into the enemy's own ranks, and immobilizing foes beneath a corrosive growth. (StarCraft II: Wings of Liberty; StarCraft: Ghost: Spectres)
Origin and physiology#
The infestor was in use by the Zerg by 2503. Unlike most Zerg strains, it can move while burrowed, and at astonishing speed. (StarCraft: Ghost: Spectres; StarCraft Field Manual)
The infestors of the Leviathan Brood show these defensive structures in more pronounced form. The primal Zerg also make use of infestors, though those creatures are frequently preyed upon by the larger members of their own packs and have evolved thickened plating along the back to protect themselves. (StarCraft II: Legacy of the Void)
The neural parasite#
The infestor's most dangerous feature is the neural parasite, a multi-mouthed symbiotic creature that attaches to an enemy and controls its mind for a short period. The parasite embeds itself near the top of the victim's spine, and the host can still communicate through the parasite's native language to its former allies. (StarCraft II: Wings of Liberty; The Exit; StarCraft Field Manual)
Infested terrans and other weapons#
Infestors are used to support hydralisks and roaches on the battlefield, and they plant virophages. They spawn infested marines onto the battlefield to face their former compatriots, and these marines can pop right out of the ground when the infestor is burrowed. The infestor is also capable of harboring larvae and spewing them at enemies. (StarCraft II: Wings of Liberty; StarCraft II: Shadow Wars; StarCraft Field Manual)
Upon developing the fungal growth mutation, the infestor gains a weapon that both harms and holds. Sprayed over an area, the growth damages and roots any enemy it touches, and it reveals cloaked and burrowed foes alike. (StarCraft II: Wings of Liberty; StarCraft Field Manual)
Variant strains#
The infestor strain has produced specialist forms within the Swarm, among them the choker, a number of which spawned on Meinhoff during the Second Great War. Infestors enslaved by the Cerberus Program were implanted with a titanium infrastructure to improve their survivability, and the primal and Leviathan Brood lineages each carry their own adaptations of the base creature. (StarCraft II: Wings of Liberty; StarCraft II: Legacy of the Void)
Frequently asked questions
- What is the Infestor in StarCraft?
- The infestor is a burrowing Zerg support strain that works through subversion rather than brute force. It seizes control of hostile minds, regurgitates infested soldiers into enemy ranks, and immobilizes foes beneath a corrosive growth. It was in use by the Zerg by 2503.
- What makes the Infestor different from other Zerg?
- Unlike most Zerg strains, the infestor can move while burrowed, and at astonishing speed. It supports hydralisks and roaches rather than fighting head-on, and it is used to plant virophages.
- How does the Infestor's neural parasite work?
- The neural parasite is a multi-mouthed symbiotic creature that lives within the infestor and, when spat, attaches to an enemy and controls its mind for a short period. It embeds near the top of the victim's spine, and the host can still speak to former allies through the creature's own language.
- How does the Infestor use infested marines?
- Infestors spawn infested marines onto the battlefield to fight their former compatriots, and these marines can pop right out of the ground when the infestor is burrowed.
- Is the neural parasite's control permanent?
- No. The neural parasite controls its victim's mind only for a short period of time before the host is released.
Gallery




Images via StarCraft Wiki
Sources
- GameStarCraft II: Wings of Liberty, Blizzard Entertainment, 2010
- GameStarCraft II: Legacy of the Void, Blizzard Entertainment, 2015
- BookStarCraft: Ghost: Spectres, Nate Kenyon, Pocket Star, 2011
- BookThe Exit, Dany McAleese, Blizzard Entertainment short story, 2014
- ComicStarCraft II: Shadow Wars, Valerie Watrous (w), Blizzard Entertainment, 2018
- BookStarCraft Field Manual, Rick Barba, Insight Editions, 2017
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

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