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Laser Field

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This subject is related to the Portal 2 era.
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Laser wall.jpg
Laser Field
General information

Aperture Science


Incandescent Laser Field

Used by

The Laser Field,[1] also known as the Laser Grill[2] or the death field,[3][4] is a testing element featured in the Aperture Science Enrichment Center. First appearing in Portal: Still Alive's challenge maps, it was introduced proper in Portal 2 in Wheatley's twelfth Test Chamber.


The Laser Field is comprised of red lasers that prevent Test Subjects from passing through. Any contact with the lasers will result in instant death. However, the Field allows objects to pass through without harm, thus acting as the exact opposite of the Material Emancipation Grid.

The Field's two emitters, appearing curved and with a red stripe, dispense five of the two-linked lasers. They are marked with a bright red attention sign on each side. Discouragement Redirection Cubes are unable to redirect any of the lasers.

Behind the scenes[edit]

The Laser Field appears to originate from a similar device seen in Portal: The Flash Version, remade by fans for Portal as Portal: The Flash Version MapPack. In Portal: Still Alive, which includes some maps from The Flash Version MapPack, the Laser Field reuses the model and textures of the Emancipation Grid's emitters. Portal 2 introduced specific textures for the Laser Field, but its model remained shared with the Emancipation Grid.

The name of the Laser Field's model entity in Wheatley's twelfth Test Chamber is only_deathfield_in_the_game.


Portal: Still Alive[edit]

Portal 2[edit]


List of appearances[edit]

Main games[edit]



  1. Perpetual Testing Initiative
  2. Portal 2 Collector's Edition Guide, page 19
  3. Portal 2 game files, entity name
  4. Perpetual Testing Initiative game files, texture filename