Cave Johnson quote image

1366 × 768

Cave Johnson Portrait

1366 × 768

Portal logo with quote

2560 × 1600

Chell and the Aperture Science portal

1680 × 1050

Aperture Science entrance portal

1920 × 1080

Aperture Science Handheld Portal Device

1200 × 670

Aperture Science Portal Blueprint

1151 × 800

Aperture Science Facility — Gray

1920 × 1080

Aperture Science logo in game

1920 × 1080

Aperture Logo — Blue, Dark

1600 × 900

Portal game icon

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Aperture Science welcome screen

1280 × 960