Which game's marketing campaign involved an in-game live event that attracted over 12.3 million concurrent players, effectively turning its product launch into a massive virtual concert?

In the highly competitive gaming industry, product launches can make or break a title's success. The initial marketing push and release strategy often determines whether a game becomes a cultural phenomenon or fades into obscurity. This trivia question explores one of the most innovative and successful game launch strategies in recent years that broke industry records and set new standards for how AAA titles are marketed and released.

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Fortnite's Travis Scott Astronomical event
Call of Duty: Warzone's nuke event
Minecraft's Caves & Cliffs update livestream
League of Legends' K/DA virtual concert