Aperture science logo

1650 × 1080

Aperture Laboratories Logo — Blue, Neutral

1600 × 1200

Aperture Laboratories logo with characters

1680 × 1050

Chell with Companion Cube

1600 × 1200

Umbrella Corporation Logo — Blue, Technological

1280 × 960

Halo-themed federation wallpaper

1280 × 1024

Live for the Swarm logo

2560 × 1440

Aperture Laboratories Logo — Blue, Technological

1600 × 1200

Aperture Laboratories Logo — Black, Dark, Sleek

1920 × 1200

Portal Gun Device — White, Technological

1920 × 1200

Aperture Science logo

1440 × 900

Aperture Science logo with robot

1680 × 1050