The Warden was added to Minecraft in the 1.19 Wild Update in 2022 as the guardian of the Deep Dark and Ancient Cities. Unlike most mobs, it is blind and emerges from sculk when vibrations and smells accumulate, which is why its proximity audio became so recognizable. Clips of the heartbeat and growling spread quickly through Minecraft YouTube, TikTok and horror edits after the update. Players now reuse the sound outside the game as a universal signal that a powerful, unseen threat is closing in.