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Frohmansquare.jpg This article is non-canon.

The subject matter of this article does not take place in the "real" Half-Life and Portal universe and is considered non-canon.

Wheatley transparent.png The title of this article was translated for the wiki.

The name of this subject in the original language, Japanese, is "強化シェークトラップ".

Production information


Technical specifications
Max ammo


Used by

Engineer (IS)

Game information
  • weapon_pshake_mp
    (weapon entity)
  • npc_pshakesatchel (dropped)
  • npc_pshaketripmine (placed)

The Powershake, also known as the Power Shake and the Enhanced Shake Trap, is a purchasable weapon in the Battle Mode of Half-Life 2: Survivor, available to the Engineer for 200,000 SG. It was added to the game in the 2.05 update,[1] which was released on December 17, 2008.[2]


Similarly to Survivor's S.L.A.M, the Powershake has two modes of operation. Its primary use is as a laser tripmine: a placed Powershake will emit a red beam and detonate if anything except friendly players crosses that beam. It can also be dropped with the secondary attack; it detonates when an enemy player steps on it. The explosion deals no damage.

After the explosion, the Powershake creates a pink colored spherical energy field, which rapidly grows and then contracts and disappears in about 2 seconds. Players who come in contact with the field, regardless of the team, will have the capture status effect applied to them.

While captured, the player is unable to move and attack, and can only look around and switch weapons. The effect lasts for a maximum of 10 seconds, but the captured player may escape faster by attempting to move in alternating opposite directions (left-right or forwards-backwards), which is indicated on the screen. Capture is one of the few status effects that can not be cured with the Recovery Injection.


  • Dropped Powershake can be picked up and thrown with the Gravity Gun, but it will not explode on any contact with enemy players, as the explosion is only caused when the weapon is stepped on.
  • Players can also detonate both placed and thrown Powershakes by shooting at them.


List of appearances[edit]


  1. Powershake on the official Survivor website (archived)
  2. Version history on the official Survivor website (archived)

External links[edit]