I want to know, how to assign a specific sound for notification from game, clash of clans.

[Micheal Hunnicutt]

I know how to set notification sound, for texts, messenger, and contacts, and, my phone, but, what about other app notifications, like, games??

 

[SpookDroid]

Unless the app has a specific notification section in its own settings, there's no way to assign a specific ringtone to it unless you use 3rd party notification managers light LightFlow, that let you customize notifications per app, including LED colors, sounds, and vibration patterns.