Roblox is a massively multiplayer online game creation platform that allows users to design their own games and play a wide variety of different types of games created by other users. The platform hosts user-created games and virtual worlds covering a wide variety of genres, from traditional racing and role-playing games to simulations and obstacle courses. As of August 2020, Roblox has over 164 million monthly active users, with it being played by over half of all children aged under 16 in the United States.