Portal Gun Device — White, Neutral

1024 × 768

Robotic Spheres in Space

1366 × 768

Two Characters Standing — Red, Dramatic, 3d Render, Logo

1280 × 1024

Chell Holding Portal Gun

1920 × 1200

Robotic Arms in Lab — Black

1280 × 1024

Turret Sentry Robot — Black, Dramatic

1152 × 864

Companion Cube — Gray

1680 × 1050

Aperture Science Project Portal

1280 × 800

Abandoned Industrial Facility — Gray, Dramatic, 3d Render

1920 × 1080

White Cube with Heart Symbols — Gray, Dramatic

1920 × 1080

Portal Game Logo and Icons — Black

1920 × 1200

Aperture logo on dark wall

2560 × 1600