Portal-themed digital artwork

1920 × 1200

Metroid Prime Hunters artwork

1024 × 768

Anime mecha girl character

1600 × 900

Aperture Laboratories logo with graffiti

1280 × 1024

Aperture Science logo

2560 × 1600

Aperture Science logo and slogan

2560 × 1600

Portal game art with Aperture Labs logo

1600 × 1200

Thermal Discouragement Beam diagram

1920 × 1080

Aperture Laboratories safety icons

1024 × 768

Aperture Laboratories logo

1280 × 1024

Turret Sentry firing laser

1152 × 864

Turret Sentry with Laser

1920 × 1080

Portal game art with text

1280 × 960

Repulsion Gel Testing Element

1920 × 1080

CL4P-TP Interplanetary Ninja Assassin

1024 × 800

CL4P-TP Interplanetary Ninja Assassin

1024 × 768

Chibi character hugging a cube

1440 × 900

futuristic cityscape view

1024 × 768

Klingon emblem on wall

1920 × 1440

Zerg Queen and Creature — Blue

1920 × 1200