'Roblox' creators have promised a content rating system that will help prevent kids from seeing sexual activity in games on the platform.

Roblox is adding new restrictions to younger kids’ accounts and revamping its parental control features as part of a push to beef up the safety features on its platform.

Video game maker Roblox said on Monday that it is implementing new safety measures for users younger than 13, including permanently removing the ability to message others outside games on its ...