Parents have long struggled with the way video games captivate kids and teens. But the massive hit fortnite is proving especially difficult to manage because it’s available on computers, consoles, and mobile devices and can be played by multiple players at once. It’s also cross-platform, so a player on one device can communicate with others on another, even if they don’t know each other or live in the same area.

Fortnite is free to download, but players can spend real money on in-game items, including weapons and outfits (called’skins’). The game is loaded with violence, but there is no blood; defeated enemies simply disappear. The style of the graphics is cartoonish and geared towards younger gamers. Epic Games aims to keep the game fresh by frequently introducing new weapons and outfits, collaborating with popular brands to promote them, and offering a $10 season pass that unlocks extra in-game rewards.

Many families find themselves in the midst of the fortnite craze, with kids spending hours each day playing. Some parents are concerned about this, especially since the game is so short (each match lasts only 20 minutes) and the fact that it is designed to be addictive. Researchers at the Stanford Graduate School of Education have said that video game designers use “cognitive structures” to hook gamers and keep them coming back match after match.

Sarah, a mom in California, says she limits her son’s fortnite play to three to four matches per week, and she encourages him to do homework, practice music, or other activities in between games. She also tries to teach him to have good communication skills in the game by not talking over other people or acting aggressively toward them. She also uses the in-game parental controls to filter swear words in text chat, disable friend requests, turn off voice or text chat, and set a password for making in-game purchases. It’s also possible to turn on playtime reporting, which will email you weekly reports on how much time your child has spent in the game.

While her son’s fortnite habits are largely positive, she does worry about the game distracting him from his schoolwork. And she worries about him being exposed to predators through the chat feature, which lets users talk to strangers who are playing at the same time. (The National Crime Agency in the U.K. recently warned that the fortnite chat feature is exposing kids to online sex offenders.)

For these reasons, she is hesitant to let him play the full version data macau of fortnite. But she does agree to let him play the free creative mode, where players get their own island and can invite up to 15 friends to join them. In this mode, she can monitor what he is doing and he is not able to purchase anything in-game. She believes this has helped her manage his gaming better. However, she still has concerns about how addictive the game is.