Half-Life 2 was released by Valve in 2004 and built its dystopian City 17 setting around oppressive broadcasts, Combine scanners and constant radio interference. Sounds in that style became staples in Garry's Mod, machinima and horror edits, where players reused the game's audio to signal surveillance and decay. This creepy radio clip spread through soundboards and meme edits because it instantly identifies the Half-Life universe without needing dialogue or music, and it still works as shorthand for a transmission that should not be trusted.