Where do UPBGE store its config files?

I would like to back up my config files for the game engine.

It’s not inside C:\Users~\AppData\Roaming\Blender Foundation\Blender where Blender’s config usually is.
So where is it for the game engine ?

Ok I just answered my own question, it is in:
C:\Users~\AppData\Roaming\UPBGE\Blender