How to turn off DoodleGod alerts?

[3DPiper]

Doodle God Planet keeps alerting me when I am not playing the game.

"The King has offered a great reward for saving the Princess. Do you dare take the quest?"

How do I get it to stop?

 

[N_LaRUE]

Have you tried going in the app and looking in settings? Then you can also try Settings -> Notifications.+ actions

Or go to Battery Sense and disable background settings. Swipe over to your app list and find Battery Sense.