Fallout: New Vegas, released in 2010, is a post-apocalyptic role-playing game set in the Mojave Wasteland, and its interface sounds became instantly recognisable to players who spent hours managing quests, notes and radio messages. The message window alert is one of those short UI cues, later shared online where Fallout fans and meme editors reuse it outside the game. It endures because it is short, clear and tied to a beloved RPG, making it a quick shorthand for a new notification.