1. Portal (OS X) Achievements
  2. Friendly Fire achievement
Portal (OS X)

Portal (OS X)

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Friendly Fire achievement in Portal (OS X)

Friendly Fire

Knock down a turret with another turret.

Friendly Fire0
Offline Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.

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