We've rated it for age 13+ based on continuing challenges with problematic content, but it's potentially OK for kids younger than that if account restrictions are turned on and parents pay close attention to their kids' activities on the platform. Roblox's free and open communication policy means that kids' interactions can vary widely, from legitimate player engagement to iffy involvement with possibly predatory users. Parents need to know that Roblox is a game-creation website where users design and upload their own games - and play games that other people have created - in a multiplayer environment.