Portal robot in Skyrim

2560 × 1600

Portal robot with laser

1600 × 1080

Portal Gun from Aperture Science

1920 × 1200

Portal device from Wheatley Laboratories

1920 × 1080

science facility interior

1920 × 1080

Wheatley Character

1920 × 1080

GLaDOS in a chamber

1920 × 1080

Portal Gun Device — White, Technological

1920 × 1200

Portal Gun Device — White

1920 × 1200

Aperture Science Devices

2304 × 1728

Aperture Science Handheld Portal Device

1200 × 670

Portal turrets and robots

2560 × 1600