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Extractor

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Extractor SC2 Rend2

An extractor

The zerg extractor is essentially a giant organ that sits atop a vespene geyser and packages the vespene gas into small fleshy sacs that can be easily carried by zerg drones to a nearby hatchery for absorption. Through this structure, the zerg convert raw vespene into a form that is more beneficial for their organic systems. The refined gas it produces becomes a necessity in the later evolutions of the zerg breeds. As the extractor lives off gas itself, it does not need to be built on an area already covered in creep.[1]

Game StructureEdit

StarCraftEdit

Extractor
SC1 Extractor
Structure
Race

Zerg

Role

Extract Vespene gas

Production
Minerals

50 Minerals Terran SC1

Build time

40 Time SC2 Game1

Evolves from

Drone

Requires

Hatchery

Protection
Hit points

750

Armor

1

Drones may still retrieve gas from a depleted geyser, but the yield will be greatly reduced (to 2 per trip).

StarCraft IIEdit

Extractor
Extractor SC2 Rend1
Structure
Race

Zerg

Role

Extract Vespene gas

Production
Minerals

25 Minerals Terran SC1

Build time

30 Time SC2 Game1

Evolves from

Drone

Hotkey

E

Protection
Hit points

500

Armor

1

Type
  • Armored
  • Biological
  • Structure

The extractor appears in StarCraft II. It functions almost identically to its predecessor. The extractor no longer yields any gas when it is depleted.

DevelopmentEdit

The extractor went through only a couple revisions before being finalized. The first rendition was simply a adaptation of the original game's artwork to 3D. The main flaw of this first design was the complexity of the different shapes and colors, it looked too busy and was too visually distracting. The final revision simplified the building's distinct elements and unified the Extractor with the rest of the zerg structures.[2]

Heart of the Swarm CampaignEdit

In Heart of the Swarm, there is a Kerrigan ability that make the extractor to turn into an automated extractor. It is a tier 3 ability and makes it that it doesn't require drones to mine vespene gas. And there is a tier 5 ability, vespene efficiency, that increases the vespene gas harvesting efficiency by 25%. Both of these abilities are passive.[3]

ReferencesEdit

  1. Underwood, Peter, Bill Roper, Chris Metzen and Jeffrey Vaughn. StarCraft (Manual). Irvine, Calif.: Blizzard Entertainment, 1998.
  2. 2011, SC2: Zerg Extractor. Deviantart, accessed on 2011-07-01
  3. Blizzard Entertainment. Heart of the Swarm. (Activision Blizzard) (in English). March 12, 2013

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