Portal companion cube sketch

1920 × 1200

Chell's Companion Cube

1680 × 1050

Angel-winged Companion Cube

1680 × 1050

Angelized Companion Cube

1280 × 1024

Companion Cube with glowing gears

1280 × 1024

Chell with a Companion Cube

1920 × 1080

Aperture Science PC setup

1024 × 768

Portal game logo with icons

1440 × 900

Portal test chamber view

1920 × 1080

Portal game logo and icons

1920 × 1200

Portal game logo and icons

1920 × 1080

Portal game loading screen

1280 × 960