Halo soldier in combat

1280 × 1024

Master Chief in helmet

1920 × 1080

Master Chief in armor

1920 × 1080

Master Chief in helmet

1440 × 900

Spartan vs Elite confrontation

1920 × 1080

Master Chief in Sunset

1920 × 1200

Portal turret scene

1024 × 768

Portal game environment

1100 × 1571

Halo 3 ODST helmet close-up

1600 × 1200

Halo Reach logo on a circular panel

1280 × 800

Master Chief in Halo 2

1600 × 1200

Halo 3 helmet in grass

1440 × 900

Master Chief in Halo 3

1920 × 1200

Master Chief in action

1600 × 1200

Portal game quotes with icons

1280 × 1024

Portal game loading screen

1280 × 1024

Portal game loading screen

1920 × 1200

Aperture Science logo

3900 × 3600

Aperture Science logo wallpaper

1440 × 900

Portal game icon

1680 × 1050