I kind of already installed it but there is a mdf file which installs the addon, i cant install for some reason and the translation file only works for the game with the addon together .
at first i couldnt install it at all since it gave me some error message that was fixed pretty quickly after i changed to japanese without unicode .
if that helps my system specs are 16g ram ,ryzen 1500x ,and a rx 470 and i run windows 10