The primal host is a primal zerg strain, able to spawn smaller simpler creatures to fight for it. They are the progenitors of the Zerg Swarm swarm host.[1]


Primal hosts were a primal zerg species that evolved on Zerus. During the Second Great War, the Zerg Swarm invaded Zerus and fought the primal hosts of Brakk's pack. The essences of the primal hosts were taken by the Zerg Swarm to create the swarm host, a similar creature.[2]

Primal hosts were deployed by Dehaka during the End War, and could be evolved from their swarm host counterparts. Sometime later, some swarm host strains began to merge with primal host strains, creating a strain with similar traits to both.[1]

Game Unit

The primal host is available to Dehaka in Co-op Missions. Like the swarm host, it spawns locusts that swoop down from the air to attack their foes. They can evolve into creeper hosts.[3]


  • A similar skin to the primal host is available in multiplayer for players who reach level 7 with the zerg Katowice 2018 War Chest.
  • In the mission "Waking the Ancient," the primal zerg swarm hosts that are encountered are labeled as "swarm hosts," but later information indicates that those were primal hosts.


PrimalZerg Armor Upg
Primal Carapace

Increases the armor of all primal zerg units.

Campaign Acquisition
Unlock Initially available.
Purchased from Primal hive
Hotkey C
Level 1
Cost 100 Minerals Terran SC1 100 ZergVespene SC2 Game1 160Time SC2 Game1
Level 2
Cost 175 Minerals Terran SC1 175 ZergVespene SC2 Game1 190Time SC2 Game1
Required Glevig's den
Level 3
Cost 250 Minerals Terran SC1 250 ZergVespene SC2 Game1 220Time SC2 Game1
Required Murvar's den


  1. 1.0 1.1 Blizzard Entertainment. StarCraft II: Legacy of the Void. Collections Tab: Skins. October 17, 2016
  2. Blizzard Entertainment. StarCraft II: Heart of the Swarm. (Activision Blizzard). PC. Mission: Heart of the Swarm, The Crucible (in English). 2013-03-12.
  3. Blizzard Entertainment. StarCraft II: Legacy of the Void. (Activision Blizzard) (in English). November 10, 2015
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