For zombs.io addicts, this question matters alot. Nobody would like to encounter a restriction problem while trying to play a favourite game. For that reason, it is an important matter whether the zombsroyale.io is blocked or not by school administrations. Although school administrations are likely to ban some games because they are thought to be harmful, this would not apply to the zombsroyale.io game. The zombs.io game does not contain any harmful content therefore is not blocked by school administrations.
In order to start playing the game, you will need a standard device, preferably a mobile device if you are at school and of course standard internet connection. Since the game is not blocked, you can effortlessly access to the zombsroyale.io page and start playing. That means, you can play unblocked at schools as long as you have a mobile device and a standard internet connection.