Character in Gas Mask — Gray, Dramatic, Autumn

1440 × 900

Welcome to City 17

1600 × 1200

Soldier in Gas Mask — Black, Dramatic, Digital Art, Gas Mask, Weapon, Glowing Eyes

1680 × 1050

Half-Life 2 character in gas mask

1024 × 768

Soldier in Gas Mask — Blue, Dramatic, Digital Art, Gas Mask

1680 × 1050

Character Near Wrecked Car

1680 × 1050

Hooded Figure with Weapon — Black

822 × 650

Soldier in Gas Mask — Blue, Dramatic, Night

1600 × 900

Person in Gas Mask — Blue, Dramatic, Tense

1920 × 1080

Half-Life character with weapon

1024 × 768

Half-Life 2 game environment

1024 × 768

Soldier with Flamethrower — Red, Tense

1280 × 960