Glowing Lambda Symbol — Orange

1920 × 1080

Half-Life 2 Logo — Silver, Neutral

1280 × 960

Half-Life 2 Logo — Black, Minimalist

1680 × 1049

Half-life 2 Logo — Black, Dramatic

1024 × 768

Half-Life 2 logo on rusted metal

1920 × 1080

Half-Life 2 Logo — Orange, Minimalist

1000 × 1052

Lambda Symbol Logo — Orange

4004 × 3394

Glowing Cube with Hearts

1280 × 1024

Soldier in Gas Mask — Gray, Dramatic, Digital Art, Gun, Logo, Wall

1024 × 768

Zombie Soldiers in Gas Masks

1024 × 768

Aperture Science Logo — Black, Dark, 3d Render

1680 × 1050

Cracked Screen with Logo — Black, Dramatic

1920 × 1080