White Robot with Red Light — Gray

1280 × 800

White Robot with Red Light

1366 × 768

Chell with Robots — White, Dramatic

1920 × 1200

Portal Game Icons

1920 × 1200

Aperture Laboratories logo

1440 × 900

Aperture Laboratories logo

3840 × 1080

Aperture Laboratories logo

1917 × 1036

Atlas and P-body robots

1366 × 768

Portal Gun from Aperture Science

1920 × 1200

Portal game ending screen

2464 × 900

Portal game title screen

2879 × 899

Portal game title collage

1024 × 768