I do not know what information is collected by my game. I have never set any function of collecting personal information but the upload system asks me for a Privacy policy URL so I have to make one. This game even does not have any ability to access the internet. 

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The problem is because of the Microsoft upload system. If I do not set the game package to "runFullTrust" then upload system will show "violates pattern constraint of '\bms-resource:.{1,256}'" and do not allow me to upload.