The sound comes from The Elder Scrolls V: Skyrim, released by Bethesda Game Studios in 2011, where it plays whenever the Dragonborn gains a level and can choose a new perk. Because Skyrim remained hugely popular for years through re-releases, mods and streaming, the chime became instantly recognisable even to people who never played the game. Creators now use it far beyond gameplay clips as a shorthand for levelling up in real life, from fitness progress and study goals to new jobs and personal milestones.