“The Make-a-Wish kids came over a couple weeks ago, and all they wanted to do was play Fortnite,” said Ms. Salamone, who used to be on Kid Rock’s management team and wears a diamond on one of her teeth. She worries about what happens to the boys — the talent in the clan are all boys — as they grow up.

“They all have distinct personalities,” Ms. Salamone said of the FaZe gamers. “Jev screams all the time.”

Jimmy Jellinek, chief creative officer of FaZe Clan and previously chief content officer at Playboy, said: “Jev will do a Top 5 clip of amateur footage and then rage over the microphone, and those do extraordinarily well.”

Thomas Oliveira, 24, who streams under the name Temperrr, took me down to his suite, where Barry the Bengal cat lives and where Mr. Oliveira streams Fortnite on Twitch and posts videos to his 1.6 million YouTube followers. He joined the collective when he was 15, playing Call of Duty when the clan was a handful of snipers. He went to school for business and was not even a full semester in when he stood up during a math test and walked out.

By 2012, the group decided to start professional gaming teams to compete in tournaments and take a percent of their earnings. Now they sign players to the FaZe teams across all games. At the house now they focus on more lifestyle gamer content. Mr. Oliveira has a tattoo of a wolf with the FaZe logo over it.