Portal turret with red laser

1280 × 1024

Portal turret with laser

1440 × 900

Portal turret scene

1024 × 768

Portal robot with laser

1920 × 1200

Portal game screenshot

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Portal turret sentry

1920 × 1200

Portal game cover art

1280 × 1024

Portal robot with laser beam

2560 × 1080

Aperture Laboratories cake scene

1280 × 800

Portal turrets with red laser

1920 × 1200

Portal turret sentry

1920 × 1080

Portal game logo and icons

1920 × 1200

Portal game environment

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Portal game cover art

1920 × 1080

Portal game loading screen

1280 × 960

Portal game logo artwork

1440 × 900

Portal game scene with GLaDOS

1920 × 1080

Portal 2 robots in a test chamber

1920 × 1200

Portal gameplay with robot and cubes

1920 × 1080

Portal gameplay scene

1920 × 1200