Aperture Science test chamber

1280 × 960

Portal test chamber scene

1440 × 900

Chell in Aperture Science

2560 × 1440

Stick Figure Falling — Gray

1280 × 1024

Portal turrets in test chamber

1600 × 1200

Portal robot in test chamber

1920 × 1080

Two Robots in a Facility — White

1920 × 1200

Companion cube in a test chamber

1680 × 1050

Robotic Test Chamber

1920 × 1200

Robotic Camera Device — Black

1920 × 1080

Two Robots in Corridor — White, Dramatic

1920 × 1080

Woman Holding Device — White

1920 × 1200