If you want the definitive experience, you cannot rely on Creative Assembly’s 2009 localization. You need mods.
The most direct way to change the game's language is through the Steam client. This often triggers a small download for the required language packs. empire total war language settings better
Campaign voiceovers are not fully dubbed in all languages – often only English and a few others have voice lines. Text will still change. If you want the definitive experience, you cannot
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Creative Assembly\Empire (path may vary slightly depending on your OS). Change the value to your desired code (e.g., for English, for German, for French). 4. Improving "Better" Visuals & Performance If you want the definitive experience