First Blood is tied to the Counter-Strike series, where it announces the first kill of a round and has been a familiar part of matches since the Counter-Strike 1.6 era. The call belongs to a tradition of dramatic announcer lines in competitive shooters, sitting alongside other familiar voice cues such as bomb has been planted and enemy spotted. As gameplay clips spread through YouTube and streaming platforms, the sound escaped full matches and became shorthand for any first win, first point or first successful attempt in a game.