The sound comes from Minecraft, Mojang's sandbox survival game, where zombies are common hostile mobs that spawn at night and in dark caves. Their distinctive groan has been part of the game since its early versions and is instantly recognisable to players who have survived a night in the game. As Minecraft gameplay clips spread across YouTube, TikTok and streaming platforms, the zombie groan became a shorthand for danger, darkness and the undead in edits far beyond the game itself. Creators still use it today because players recognise it immediately, even without any visuals.