Companion Cube Warning

1280 × 800

Portal companion cube

1440 × 900

Portal gun from Aperture Science

1200 × 750

Portal game title screen

1920 × 1200

Half-Life 2 Combine Soldiers

1200 × 960

Companion Cube with hearts

1200 × 960

Companion cube with hearts

5000 × 3125

Aperture Science logo

3900 × 3600

Aperture Laboratories logo

1680 × 1050

Aperture Laboratories logo

2560 × 1600

Aperture Laboratories logo

1600 × 1200

Aperture Laboratories logo

1680 × 1050

Aperture Laboratories logo

6000 × 1800

Aperture Laboratories Logo — Gray

1920 × 1200

Team Fortress 2 character lineup

1280 × 1024

Kingdom Hearts promotional art

1366 × 768

Half-Life 2 logo

4004 × 3394

Half-Life 2 Episode One

1200 × 900

Robotic Villain Character

1024 × 768

Organization XIII logo

1920 × 1200