A 16-year-old’s Roblox game, Grow a Garden, has shattered records for the most concurrent players in history. The simple, stress-free game lets players grow plants, trade or just hang out.

A 10-year-old girl was kidnapped by a man who messaged her on Roblox and Discord. She was found hundreds of miles from her home the next day.

Louisiana Attorney General Liz Murrill is suing Roblox, alleging that the online gaming platform is allowing sexual predators to victimize kids. The platform is wildly popular with children and ...