Valve Theme - Extended - song and lyrics by Valve | Spotify
VALVe theme | Theme Plaza
Valve cardiaque Modèle de présentation | Thèmes Google Slides
Valve Intro Song - Hazardous Environments (Extended) - YouTube
Valve Intro (2004) - YouTube
TIL when you emerge from the pipe and the Valve theme plays in game, the scene looks like the Black Mesa logo. (HL1-HL:S-Black Mesa) Was this intentional or a huge coincidence? :