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The overseer is a zerg unit evolved from the overlord.

OverviewEdit

Overseers are genetically-altered overlords that have a mass of additional sockets filled with highly evolved optical receptors with hypersensitive retinas. These “eyes” have been through many iterations, each developmental cycle improving upon the preceding one’s optical evolution. The zerg are obsessed with detecting subtler motions and more advanced camouflage techniques, and this latest evolution allows the overseer to detect any hidden enemy units, including those that are burrowed underground or cloaked. Overseers can also carry or give birth to changelings.^[1]

Unlike most other zerg breeds but like overlords, overseers have the ability to act with appropriate judgment, but are severely limited in their mental flexibility.^[2]

Game UnitEdit

Overseer
Unit
Race	Zerg
Role	Advanced aerial observer
Properties
Maximum energy	200 (init. 50)
Energy regen/second	0.5625
Sight range	11
Detection range	11
Production
Minerals	50
Gas	50
Control	Provides 8
Build time	17
Evolves from	Overlord
Requires	Lair/Hive
Hotkey	V
Movement
Speed	1.875 (2.75 with Pneumatized Carapace)
Acceleration	2.125
Lateral acceleration	46.0625
Deceleration	0
Collision radius	1
Protection
Hit points	200
Hit point regen/second	0.2734
Armor	0
Type	Air Biological
Armor type	Armored
Meta
Target priority	20
Kill score	400
Production score	200

The overseer loses the ability to excrete creep or transport units, but gains the ability to create changelings. It continues to provide control and has faster movement.

AbilitiesEdit

Detector
Notes
This unit can detect cloaked and burrowed enemies.
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Contaminate
Usage Energy 125 Duration 30 Hotkey E
Notes
The overseer disables a building, which becomes covered in slime. It cannot produce units, larva or research upgrades while contaminated.
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Spawn Changeling
Usage Energy 50 Range HotS only: siege range[3] Activation/ Build Time Almost immediate Hotkey C
Notes
The overseer can create a changeling, which can spy on enemy forces.
Edit

UpgradesEdit

Flyer Carapace
Evolved at	Spire Greater spire
Properties
Level Level 1 Level 2 Level 3 Minerals 150 225 300 Gas 150 225 300 Evolution time 160 190 220 Required Lair Hive
Notes
+1 bonus to armor per level for zerg air units.
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Pneumatized Carapace
Evolved at	Hatchery (with at least 1 other lair or hive)/Lair/Hive
Hotkey	P
Properties
Minerals 100 Gas 100 Evolution time 60
Notes
Increase speed of the overlord by 1.29 to 1.88 and the overseer by 0.875 to 2.75.
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Heart of the Swarm CampaignEdit

Sarah Kerrigan's forces never create overseers. Detection was never required in the campaign.

DevelopmentEdit

Main article: Overseer/Development

Special Overseer StrainsEdit

• Spotter

NotesEdit

The overseer was developed as the universal overlord detection in StarCraft I made the zerg "detectorific". As such, the overlord/overseer split makes cloaking more useful to a zerg's opponent.^[4]

ReferencesEdit