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"This sensor will light up if an antlion is coming down this tunnel. More lights mean more antlions. When a tunnel lights up, we move a few turrets in front of it. Pretty simple, eh, doc?"

The Antlion Detector is a Resistance device detecting approaching objects.


Used in the Victory Mine by Griggs and Sheckley mostly to detect approaching Antlions, the contraption includes three traffic lights connected to a sensor. When it detects vibrations/movement, the lights and an alarm activate. The more vibration/movement, the more lights. It is not foolproof, however, as both Gordon Freeman and a group of Vortigaunts can set it off.


  • The device may not be a vibration detector, as proven by the view port at the front of the sensor.


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