Assassin's Creed Black Flag Resynced hides Rick Astley Easter Egg

The updated version of Assassin's Creed Black Flag, titled “Resynced,” contains a hidden Easter egg that reveals the 1987 Rick Astley hit “Never Gonna Give You Up.” Players who decode the sheet music displayed for each of the 46 collectible sea shanties discover that the same notation is used for all tracks, and when transcribed into a music program the melody plays the well‑known Rickroll tune. The song itself is not audible in‑game; the discovery is limited to those who manually interpret the notes.

The Easter egg has sparked mixed reactions online, with some fans appreciating the nostalgic humor while others feel it disrupts the pirate‑game immersion. It remains a secret bonus for dedicated collectors who manage to gather every shanty.