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

In late June, the gardening game logged 21.6 million concurrent players, surpassing Fortnite’s previous record of 15.2 million according to Roblox.

Roblox Corp.’s 2-month-old Grow a Garden video game has quickly become one of the most-played titles in its history — and spawned a market for virtual crops and livestock that appears to ...

Whether it serves as a chill escape from the onslaught of the real world or simply a way to beat vacation doldrums, a viral Roblox game about gardening has become the surprise hit of the summer.