As Roblox's popularity grows, more child predators are targeting users. Here's what parents can do about it.

Kids who play Roblox games describe ‘scary’ virtual currencies and ‘cash grab’ random rewards.

Roblox is a virtual reality world where players can do anything from eating pizza to dancing and taking part in sports. Uders can play existing games or design their own, using virtual blocks.

More than 30 million people play Roblox every day - and millions also make their own games for the booming kid-friendly digital platform.