I don't know if this will work on a Windows phone. Since I've never owned any and never used any. Put there is methods that allow you to put the Google play store app on devices that don't have it. You are also capable of installing a application called Aptiode. Which probably has graal on it. I'm about 99% sure.

I don't know how Windows phones work, but I assume it should work the same way.If not I'll try looking into finding some ways it is doable

Edit-- found a possible working method, Will PM Phenalix about it