Chell with portal devices

1200 × 892

Portal game loading screen

1280 × 1024

White Figure Falling into Portal — Gray, Surreal

1680 × 1050

Robotic Arm with Portal Gun — Red

1920 × 1080

Now You're Thinking With Portals

1440 × 900

Stick Figure Falling — White, Neutral

1920 × 1200

Weighted Companion Cube — Black

1280 × 800

Hands Holding a Cube — Black

1680 × 1050

Woman Holding a Device — White

3199 × 4800

Portal turret with red laser

1920 × 1200

Portal turret with laser

1440 × 900

Robotic Arm with Figure

1920 × 1080