Related to Red mecha in Zone of the Enders

Silhouette of a Soldier — Green

1680 × 1030

GLaDOS with numbers

1600 × 936

Portal turrets in test chamber

1600 × 1200

Dark Figure with Lightsaber — Blue, Dramatic

1920 × 1200

Claptrap's unexpected reveal

1920 × 1080

Portal robots in a foggy lab

1920 × 1200

HK-47 droid quote

1920 × 1080

GLaDOS from Portal

1920 × 1200

Robotic Arm in Lab — Gray

1920 × 1080

For the Greater Good

1000 × 800

Chell and robots in a test chamber

1024 × 768

Wings of Liberty logo

1920 × 1080

Male Superhero in Goggles

1680 × 1050

Halo 3 Logo

800 × 600

Cyborg and Woman Face to Face — Green

3200 × 900

Two Armored Figures Fighting — Black, Dramatic, Digital Art

1600 × 1000

Battlestar Galactica: The Passage

1280 × 957

Fantasy Characters in Armor — Brown, Dramatic, Digital Art

1680 × 1050

Woman in a Tank — Purple

1200 × 746

Boba Fett helmet from Star Wars

1600 × 1200

Woman with Dragon — Gold, Dramatic, Sunset, Digital Art, Castle, Clouds

1600 × 1000

Mechs from Zone of the Enders

1024 × 768

Zone of the Enders title screen

1024 × 768

Robot Warrior in Action

1920 × 1080