The mother of a 15-year-old California boy who took his own life is now suing Roblox and Discord over his death, alleging her son was allegedly groomed and coerced to send explicit images on the apps.

Since its founding, the gaming platform Roblox had a considerable drawback: Friends who wanted to play the same game together couldn't do so easily. Typically, they'd have to use a third-party app, ...