Roblox is a certified juggernaut raking in millions of dollars every day. The platform has tens of millions of games available to play for free from your computer, smartphone, or shiny new Chromebook.

The MBTA bus turned and wobbled and wheezed forward. Then it zoomed ahead and crossed onto a bridge. The driver had unwittingly gunned the accelerator, reaching 50 miles per hour. What seems like a T ...