Roblox is one of the world’s most popular online platforms for children, offering a variety of “experiences” including games and virtual spaces. Most of the experiences are free, but offer upgrades, ...

The creator of “Blue Lock: Rivals” thought kids on Roblox might like a soccer video game with an anime vibe. It sold a few months later for more than $3 million. The 19-year-old, who asked that his ...