Fortnite’s Metallica concert showed how sprawling the game has become

Last weekend, Metallica graced the virtual stage in Fortnite, but the event was more than just a heavy metal concert. It was one piece in a weeks-long rollout of modes and content, which really drove home just how large and complex the game has become. The battle royale has steadily morphed into an entire ecosystem of games and experiences, and the Metallica crossover might’ve been the most complex to date.

The concert was the showcase moment, and it was like going...