Concrete Tunnel Interior — Gray, Dark, Ominous

1680 × 1050

Ruined City Street — Black

1920 × 1080

Man and Woman in Forest — Green, Tense, Dramatic

1280 × 1024

Ship in Snowy Weather

1920 × 1080

Half-Life 2 logo on orange

1920 × 1080

City under Storm Clouds — Green, Dramatic

1280 × 960

Black Metal Logo — Dark

1920 × 1200

Tree on a Hill at Night — Green, Serene, 3d Render

1920 × 1080

Soldier Overlooking City — Purple, Dramatic, Night

1920 × 1080

Half-Life 2 title screen

1600 × 1200

Half-Life 2 screenshot with alien device

1280 × 1024

Silver Sports Car — Gray, Dramatic, Night, 3d Render, Street

1920 × 1080