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Gravitic booster

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The gravitic booster was a protoss technology used as an aerocraft propulsion enhancement.

Combining anti-gravity theory with micro-thruster technology, these engines provide increased speed for the protoss observer.[1] This technology persisted through to the Second Great War, where it was implemented in situations where observers would need to outrun persuers.[2]

Game EffectEdit


GravBoost Observer Icon SC1 Gravitic Boosters
Purchased from Observatory
Hotkey G
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 133Time SC2 Game1

StarCraft IIEdit

GraviticBooster SC2 Game1 Gravitic Boosters
Purchased from Robotics bay
Hotkey B
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 110Time SC2 Game1


  1. Underwood, Peter, Bill Roper, Chris Metzen and Jeffrey Vaughn. StarCraft (Manual). Irvine, Calif.: Blizzard Entertainment, 1998.
  2. Observer, Blizzard Entertainment. Accessed on 2010-11-13

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