Australian cyber safety expert Susan Mc Lean told ABC Radio Darwin the news report came as "no surprise".
Roblox was founded more than a decade ago but in recent years has ramped up its global presence and accessibility on various devices, with its developers today claiming 44 million active players.
“In Mocospace, those people aren’t gathering friends there. It’s not a site designed for children, but children are logging on and predators are finding them. A lot of them have gang affiliations, the 'thug-mentality' as I call it. They’re always talking about rape scenarios and things like that,” he said. 7NEWS was there as Harris, with help from Gilpin County Sheriff’s Sgt.
Within seconds of logging onto Mocospace, 7NEWS found chat rooms full of offensive language, talk about drugs and people soliciting sexual acts. Troy Hendricks, arrested 28-year-old Jason Fluet, who Harris met on the site.
The US-developed game Roblox received global attention this month after a British father decided to check out what his sons were playing on their mobile device.
The game lets players explore imaginary worlds and allows them to interact with other users over a chat function."I was asked to lay down on top of them and they started with sexual movements," father Iain Morrison told the media about his time on Roblox.
In the app there are 'chatrooms' including Everyone and Nearby.