Related to Half-Life logo with lightning

Blue Camo Gun in Corridor

1920 × 1080

Soldier skydiving in game

1024 × 768

Domo characters in a game

1024 × 768

Apple Macintosh with game on screen

2362 × 1574

Osama Bin Laden Character

1024 × 768

Aperture Science Logo — Yellow, Dramatic

2560 × 1600

Aperture Science Logo — Beige, Neutral

1920 × 1200

Soldiers observing aircraft

1920 × 1080

Character holding dual pistols

1280 × 1024

Medic character from Team Fortress 2

747 × 1024

Quake Mission Pack No. 1

1422 × 1410

Captain Price aiming a gun

1920 × 1080

Black Mesa character portrait

1440 × 900

Wolfenstein 3D title screen

1680 × 1050

Doom II map layout

5570 × 5808

Aperture Science Logo — Blue, Neutral, Illustration

2560 × 1440

Aperture Science Logo — Black, Neutral, Vector Art, Text

1600 × 900

Aperture Science Laboratories Logo — Blue

1024 × 600

Aperture Science Logo — Blue, Technological

1440 × 900

Aperture Science Logo — Black, Neutral

1280 × 1024

Aperture Science Logo — Black, Dramatic, Digital Art, Atom Symbol

2560 × 1600

Aperture Science Logo — Black, Dramatic, Digital Art

2560 × 1600

Aperture Science Logo — Brown, Neutral

1024 × 1024

Aperture Science Logo — Gray, Neutral

1900 × 1200