Portal game logo art

1920 × 1200

Portal game logo

1440 × 900

Portal game logo

1280 × 960

Portal game logo

1920 × 1440

Portal game logo

1280 × 960

Portal game title screen

1920 × 1080

Aperture Science logo

2560 × 1600

Aperture Laboratories logo

1440 × 900

Aperture Laboratories logo

3840 × 1080

Aperture Laboratories logo

1917 × 1036

Aperture Science Project Portal

1280 × 800

Portal Logo with Text

1416 × 900