Portal title screen

1440 × 900

Aperture Laboratories logo with Companion Cube

1680 × 1050

Aperture Laboratories logo

1280 × 1024

Aperture Laboratories logo

1532 × 1080

Aperture Laboratories logo

1272 × 800

Aperture Laboratories logo

1920 × 1200

Aperture Laboratories logo

1280 × 800

Aperture Laboratories logo

1440 × 900

Aperture Laboratories logo

1280 × 800

Aperture Laboratories logo

1680 × 1050

Aperture Laboratories logo

2560 × 1600

Portal game icon

1500 × 1000

Aperture Science Enrichment Center

1440 × 900

Portal game loading screen

1600 × 900

Portal game title collage

1024 × 768

Portal game loading screen

1680 × 1050

Portal game concept on beach

1440 × 900

Portal game wallpaper

1600 × 1000

The Cake Is A Lie

1440 × 900

The cake is a lie

1280 × 1024