Soccer is probably not one of the first things that will come to one's mind when thinking about Roblox's list of games.

Unlike other Roblox soccer games that force players to grind for a long time to get good, Blue Lock Rivals lets players pick it up quickly and learn controls over a game or two.

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 ...