Okay, i have completed the translation for Italian people, i already tried to do it more polished possible but if there are other italian here or also italian speaking people, take a look and post here change or suggestion for better translate.
Important: I have intentionally let some words un-translated cause i like it more in english version but accept advices.
Current State: 100% Translated
Simply put it in \Star Ruler\Locales
After launch the game and select italian from the option menu.
Voilà you'll have the game in italian!