"Fortnite Battle Royale" has also been popular with children, even though the game is all about shooting each other. The game's cartoonish art style, free-to-play nature (does not cost money to play the game), and being able to interact online makes it attractive to kids. Since the release of the mobile version of "Fortnite Battle Royale", many parents and teachers were concerned about how it affects children psychologically. Teachers have noticed that children are easily distracted when playing Fortnite. Epic Games, the creator of "Fortnite Battle Royale", responded by adding warning labels to the game's loading screens that the game should not be played during a class session.