Aperture Science login screen

1440 × 900

Portal 2 game title screen

1920 × 1080

Portal 2 game scene

1920 × 1080

Portal 2 game artwork

1920 × 1080

Portal 2 game release

1578 × 983

Portal 2 game artwork

1024 × 768

Portal 2 gameplay scene

1920 × 1080

Portal Gun Device

1024 × 768

Aperture Laboratories logo and text

2560 × 1024

Aperture Science triumph note

1024 × 768

Aperture Science office desk

1680 × 1050

Portal 2 game cover

1349 × 800