Iudex Gundyr is the first boss players meet in Dark Souls III, released in 2016, and his theme has become one of the game's most recognisable pieces of music. The track plays during the fight in the Cemetery of Ash, where Gundyr rises from his grave to test new players. Clips of the music spread through gameplay videos, boss compilations and edits on YouTube and TikTok, where its dramatic choir became shorthand for an overwhelming challenge. It remains popular because it instantly evokes the difficulty, atmosphere and sense of achievement associated with the Souls series.