What is the server maintenance?

If you see the "Server under maintenance" message, it means that we are updating game servers to provide you with the best gaming experience possible.
It usually takes no more than a couple of hours. After that, you will be able to continue playing as usual. Do not worry; nobody can fight with you during maintenance. 

Please do not reinstall Heroes Awaken if you see the maintenance alert, as it may result in losing your game progress.