The primal host is a primal zerg strain, able to spawn smaller simpler creatures to fight for it. They are the progenitors of the 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 UnitEdit

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

Upgrades and AbilitiesEdit


Buries the unit underground. Burrowed unit are unable to move or attack, but they cannot be seen without detection.

Hotkey R
Cost 2 (burrow)Time SC2 Game1
1 (unburrow) Time SC2 Game1
Campaign Acquisition
Unlock Initially available.
Spawn Primal Locust

Spawns 2 primal locusts with timed life at target point. Can be set to autocast.

Hotkey C
Duration 25 Time SC2 Game1
Cooldown 30 Time SC2 Game1
Flying Primal Locust

Allows primal locusts spawned by primal hosts to fly. Flying primal locusts can use swoop to land and attack.

Primal Combat: Creeper Host

Two Primal Hosts battle and the survivor evolves into a Creeper Host.

Siege unit that attacks by spawning Volatile Creeper minions. Volatile Creepers can attack ground units

Campaign Acquisition
Unlock Reach Dehaka Level 8.
Hotkey V
Cost Decrease 1 ZergSupply SC2 Icon1 8Time SC2 Game1
Required Murvar's den
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
Effect Armor: 2
Level 2
Cost 175 Minerals Terran SC1 175 ZergVespene SC2 Game1 190Time SC2 Game1
Required Glevig's den
Effect Armor: 3
Level 3
Cost 250 Minerals Terran SC1 250 ZergVespene SC2 Game1 220Time SC2 Game1
Required Murvar's den
Effect Armor: 4


  • 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.


  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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