The H.E.V. Mark IV protective suit is the powered armor worn by Gordon Freeman in Half-Life, first released in 1998, and its spoken introduction became one of the game's most recognizable audio cues. The line is delivered by the suit's onboard computer as Freeman prepares for work at Black Mesa, setting up the game's blend of science fiction and workplace routine. As Half-Life clips circulated on YouTube and soundboards, the introduction was reused for parodies, edits and streams, and it remains popular because it instantly signals a high-tech setup with a hint of impending chaos.