If you have kids, you've likely heard of "Roblox," a video game played by people of all ages that has now added more parental controls.

Roblox has announced a number of built-in features that will limit what users younger than 13 can do following increased scrutiny.

Unlike competitors, Roblox until recently let children of any age establish accounts and talk to strangers. Child-safety advocates have criticized the ease with which kids on Roblox can chat with ...