Weighted Companion Cube — Gray

1280 × 1024

Portal robots in a test chamber

2700 × 1800

Portal robots scene

1400 × 900

Cat in a Portal Maze — Purple

1600 × 1200

Companion Cube — Gray

1680 × 1050

Cube with Heart Symbols — Gray, Neutral, 3d Render

1680 × 1050

White Spherical Robot — Curious

1024 × 768

Cube with Heart Symbols — Beige, Neutral

1280 × 1024

Robotic Characters in Dark Room — Gray

1920 × 1200

Companion Cube with hearts

1280 × 800

Companion Cube with hearts

1920 × 1080

Portal cake and cube

2560 × 1024