Half-Life 2 promotional art

1440 × 900

Half-Life: Alyx promotional art

1600 × 1168

Portal 2 test chamber

1680 × 1050

Chell's Companion Cube

1680 × 1050

Portal 2 game scene

1600 × 900

Aperture Laboratories logo with characters

1600 × 940

Portal game art with Aperture Labs logo

1600 × 1200

Aperture Laboratories safety icons

1024 × 768

Aperture Laboratories logo with graffiti

1280 × 1024

Aperture Laboratories logo

1280 × 1024

Portal game scene with text

1280 × 1024

Portal Gun Device

1024 × 768

Portal 2 title screen

1920 × 1080

Portal 2 game artwork

1024 × 768

Aperture Science logo

2560 × 1600

Aperture Science logo and slogan

2560 × 1600

Portal 2 game cover art

2560 × 1440

Portal 2 game scene

1280 × 1024

Portal Gun Cosplay Model

1024 × 768

Repulsion Gel Testing Element

1920 × 1080