I am one of many people who purchased a language locked (Hungarian, Polish, Russian) SimCity game to save a few $$$. The thought was we would be able to swap the English Data.package (in SimCity/SimCityData/Locale/pl-pl) over to get the game in our preferred language. The following method floating around the web does not work.   http://pin4allstore.com/games/simcity/   Doing so results in this error message. (Yes we have redeemed it just does not work in English)     Opening the english Data.Package up with a hex editor, you can find a couple area's that might be edited to maybe get around this error, and force the game into thinking you are using a supported Data.package file. Searching for value's such as "Locale", and changing English to Polish, or searching for "ENUS" and changing it to "PLPL".           But unfortionatly I end up corrupting the file and end up with this error. I am guessing I should be editing with something else besides a hex editor. Any help would be greatly apreciated.   Here are a couple Data.package files if anyone wants to give it a wirl.   English - http://www.mediafire.com/download.php?6535tzuw7qr91iz Polish - http://www.mediafire.com/download.php?7sx3aanxb8c36sf