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

One game in particular—the record-breaking viral gardening sim Grow a Garden —drew a peak of 21.6 million concurrent players.

Grow a Garden is the first major Roblox game to integrate offline growth, which encourages players to return to see changes. Shops feature time-exclusive items like fruit-pollinating Bizzy Bees.