Ethan Dallas was targeted by an adult sexual predator on Roblox when he was 12, and later on Discord, according to a lawsuit.

Roblox has faced numerous accusations in recent weeks from families and public figures who say the online gaming platform failed to implement safeguards against the sexual exploitation of children.

“Roblox” faced a wave of new lawsuits this week that allege the popular gaming platform hasn’t done enough to safeguard kids from pedophiles and sexual content. One of the latest complaints, filed in ...