Half-Life was released by Valve in 1998 and its Black Mesa scientists became iconic for their panicked voice lines and exaggerated death screams. The falling yell is one of their most reused clips, later appearing in GoldSrc mods, Garry's Mod videos, and meme edits far beyond the original game. Players associate it instantly with clumsy NPC deaths and physics mishaps, which kept it circulating on soundboards and in YouTube poops and machinima long after newer shooters replaced the graphics but not the instantly recognisable scream.