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

A 16-year-old’s Roblox game, Grow a Garden, has shattered records for the most concurrent players in history.

As gaming hits draw tens of millions of simultaneous players, Roblox engineers make sure the internet’s youth never deal with buffering.

Whether it serves as a chill escape from the onslaught of the real world or simply a way to beat vacation doldrums, a viral ...