GREENWICH — Two years ago, Greenwich High School junior Jacob Korff had extra time during his winter break and turned his video-game hobby into a $17,000 side job that is still earning him money.

Roblox has exploded in the past decade from a fairly niche block-building, game-creation multiplayer platform to arguably the closest thing we have to a metaverse that’s living and breathing today. So ...

Surrounded by virtual cliffs and a cascading waterfall, dragon riders on Roblox’s massive online gaming platform immerse themselves in a memorable scene from “How to Train Your Dragon.” In the ...