Roblox is stepping up its age verification system for users who want to privately message other players and implementing age-based chats so kids, teens and adults will only be able to message people around their own age.

Roblox is introducing new safeguards to protect children from adult strangers, but concerns linger over the rollout from the popular online gaming platform.

Rani Govender, policy manager for child safety online at the NSPCC, said action had been needed because young people had been exposed to "unacceptable risks" on Roblox, "leaving many vulnerable to har...