Unus Annus was a YouTube channel launched in 2019 by creators Markiplier and CrankGameplays, built around a single rule: every video would be deleted after exactly one year. The project ran for 365 days, with new videos arriving daily, and ended in November 2020 when the channel itself was removed as planned. Clips of its intro survived through reuploads, reaction videos, and soundboards, and fans still use the sound to mark endings, anniversaries, and the passage of time.
關於此聲音
The Unus Annus intro sound from Markiplier and CrankGameplays, used to open videos, mark a countdown, or reference their one-year YouTube experiment.
This short clip captures the opening sting of Unus Annus, the YouTube project created by Markiplier and CrankGameplays that lasted exactly one year before being deleted. A low, tense build swells underneath two distinct voices announcing the channel's name, giving the few seconds a ritualistic, almost ominous feel that is very different from a normal channel intro. For viewers who followed the project, it instantly brings back the daily countdown and the idea that nothing lasts forever, which is why the sound still works as a dramatic opener even for people who only know the meme.