Half-Life was released by Valve in 1998 and follows Gordon Freeman through the Black Mesa Research Facility after an experiment goes wrong. The non-player scientists scattered through the facility became memorable for their nervous lines and distinctive early game voice performances. Short clips of their voices later circulated on soundboards and in video edits, separated from the game itself. Because the delivery is so recognisable to PC gaming audiences, even a fraction of a second is enough to signal alarm, confusion or an experiment gone wrong in meme culture.