Portal game logo art

1920 × 1200

Portal game logo

1280 × 960

Portal Game Logo — Black, Minimalist

1920 × 1080

Portal game logo

1440 × 900

Portal game logo

1920 × 1440

Portal game logo and tagline

1680 × 1050

Portal game logo

1280 × 960

Aperture Laboratories Logo — Black, Technological, Digital Art, Text

1280 × 1024

Aperture Laboratories Logo — Cyan, Technological, Digital Art

1280 × 800

Aperture Laboratories Logo — Cyan

1280 × 1024

Aperture Science logo

2560 × 1600

Aperture Laboratories Logo — Blue, Technological, Digital Art

1920 × 1080