Half-Life, released by Valve in 1998, is set in the Black Mesa Research Facility, where its bespectacled scientist characters react with distinctive nervous voice lines when players or hostile creatures disturb them. Short clips of those reactions circulated on gaming forums and soundboards long after the game became a classic, because the voices are instantly recognisable to players who spent hours escorting or protecting the scientists. This brief fearful sound survives as a compact reaction cue, useful whenever a video needs panic without a long scream or a full line of dialogue.