Companion Cube with Heart — Pink, Playful, Illustration

1366 × 768

Weighted Companion Cube — Gray, Serene

1440 × 900

White Robot with Red Light — Gray, Calm, Digital Art, Red Heart

1440 × 900

Portal logo

1280 × 1024

Companion Cube with heart

1920 × 1200

Stick Figure Reading Book — Black, Minimalist

1917 × 1036

Portal game art collage

1440 × 1000

White Robot with Red Light — Gray, Neutral

1920 × 1080

Portal Game Icons

1920 × 1200

Aperture Logo on Wall — Gray, Dramatic, Digital Art, Tiles, Black

2560 × 1600

White Robot with Red Light

1366 × 768

Aperture Logo on Wall — Black, Dark

2560 × 1600