But did you know that Roblox games can generate real-world money? The stories differ from one developer to the next, but it is possible to make a living with virtual-world money.

Top Roblox creators are earning as much as $50,000 a month, as the user-generated-content platform continues to grow and evolve.

Philipp Batura didn’t expect one of his most successful designs to be a giant red bow. Simple and cartoonishly oversized, the ...