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Force Field

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Force Field
General information



Energy field

Game information


A Force Field is a Combine technology that prevents any unregistered persons and creatures from passing through it. It is used prolifically by the Combine to limit Citizen movements and prevent unauthorized access to areas that are considered off-limits. The system does not block inanimate objects in most cases.


  • The Force Field typically consists of two pylon-shaped generators, each one on either side of the path it is intended to protect. Visible only at a close distance, the Force Field preventing entry is generated between the two pylons. Force Fields are placed at regular intervals along railway tracks in City 17. They can also be found along the Coast, in the Citadel, in the Outlands, or virtually any Combine-controlled area.
  • When an unregistered individual attempts to go through a Force Field, it will emit a humming sound when physical contact is made. It is also worth noting that while the player is merely stopped from moving into a Force Field, going closer will actually cause a discharge to other unauthorized persons, as seen in the Half-Life 2 chapter Entanglement where Alyx Vance attempts futilely to stop Judith Mossman making off with Eli Vance. In fact, being caught inside a Force Field when it is activated will result in instant death.
  • Certain Combine security checkpoints in City 17 have Force Fields that allow Citizens with the correct permissions through. Before passing through a Force Field, Citizens are seen showing their left arm to the mounted cameras watching them, hinting they might have some kind of ID on the wrist, although nothing is seen on the models.
  • Some of the Force Fields seen in-game are being powered by Combine Power Generators, standard human power supply sockets, or from APC batteries, thus allowing the player to deactivate such Force Fields by disabling their power source.
  • The Depot teleport is closed by a Force Field barrier which is activated when a teleportation sequence begins.
  • A smaller and completely solid type of Force Field is utilized in Combine Bunkers to protect the soldiers inside while they man the Emplacement Guns.
  • The Combine Barricade features a different type of Force Field with a liquid-like appearance that is also solid to all objects.
  • Some Combine technology, such as Combine Prisoner Pod sterilizers, is surrounded by non-solid cylindric Force Fields.

Behind the scenes[edit]


List of appearances[edit]

Main games[edit]