In just under two months, a Roblox user-created game called Grow a Garden has become a massive hit.

Roblox reports 71.5 million daily active users, who are spending an average of 2.4 hours a day on the platform. And the fastest growing group devoting its time to Roblox is Gen Z, the 12 to 27 ...

On Saturday, more than 16 million people were planting seeds and collecting exotic pets within Grow a Garden at the same time. Many were not yet teenagers.

Roblox reports 71.5 million daily active users, who are spending an average of 2.4 hours a day on the platform. And the fastest growing group devoting its time to Roblox is Gen Z, the 12 to 27 ...