Hearts of Iron IV is a grand strategy game developed by Paradox Interactive and released in 2016, in which players guide a nation through the Second World War. Its start-game cue has travelled beyond the game itself as players have clipped and shared it for edits, streams and memes about beginning yet another campaign. Because the sound is tied to a familiar ritual for the community, starting a run, it still works years later as shorthand for strategy, planning and impending conflict, even for viewers who have never played the game.