Minecraft, the sandbox game developed by Mojang and first released in 2011, uses ambient cave sounds to fill its underground world with atmosphere when players mine or explore below the surface. These short, eerie clips were never tied to a single character or event, which helped them spread beyond gameplay into YouTube videos, streams and short-form edits. Creators now recognise the sound instantly as a signal for darkness, isolation and impending danger, and it remains popular because even listeners who have never played the game can feel its unsettling mood immediately.