Roblox, the game platform teaching young kids to code

Most of the players are aged nine to 12, while content creators tend to be 16 and over.

With its Lego-like avatars and easy-to-learn coding for budding programmers, the online gaming app Roblox has cornered the market in younger gamers, with 80 million monthly users, many of them under 16.

Now the platform, which has already taken the United States by storm, is setting its sights on Europe and Asia to become a global giant.