Fortnite: a parents' guide to the most popular video game in school

You know a video game has made it when ITV daytime programme This Morning posts on its Facebook page asking parents if their kids are addicted. You can be doubly sure when that post attracts almost 60,000 comments. In this case the game is Fortnite: Battle Royale, a bright, brash multiplayer shooter. It was released last year, and is now one of the biggest online games out there. With more than 40m players worldwide, the chances are either your children or their friends are already passionate fans.