Changing the display and audio language in a modified copy of The Sims 4 can feel frustrating. Standard options inside the game menu or launcher often stay locked or missing entirely because of missing registry keys, region locks, or altered configuration files. Fixing this issue requires editing configuration files directly or updating Windows registry entries so the application forces your preferred localization.
Whether you downloaded a version pre-packaged in an unfamiliar region or your preferred tongue disappeared after an update, getting your game to speak your language is entirely possible. This guide walks you through the exact methods needed to update your localization settings manually, ensuring both text and audio match your preferences without breaking your save files.
Understanding Why Language Options Lock
Retail versions of Electronic Arts titles rely on EA App configurations or platform language packs to switch localizations. When dealing with custom installations, these automated downloads are absent. The application executable or setup files look for specific variables inside text configurations or the Windows registry to determine which language string to load.
If those variables don't match an installed language package, the game defaults to English or whatever primary language was packed into the installer. Simply clicking options inside the game menus won't work if the underlying files or registry strings are missing. You have to intervene manually. More journalism by Bloomberg highlights similar perspectives on this issue.
Before starting any technical adjustments, always back up your existing save files and mods. Navigate to your Documents folder, find Electronic Arts, and copy The Sims 4 folder to a safe location on your desktop. This precaution protects your custom content and progress against accidental file corruption.
Method 1: Editing the RldOrigin or CPY INI File
Most custom setups use configuration files associated with group emulators like Reloaded or CPY. These files dictate how the application communicates with your operating system.
Locating the Configuration File
Open your file explorer and go to the main directory where your game is installed. Look for files ending in .ini. Common names include:
rld.inicpv.inisteam_api.inicodex.ini
Right-click the configuration file and open it using Notepad or any plain text editor. Avoid using rich text editors like Microsoft Word, as they can inject hidden formatting characters that break the file structure.
Changing the Language Strings
Scroll through the text until you find lines containing language parameters. They usually look like Language = en_US or Locale = en_US.
Replace the existing language code with your preferred choice. Common language codes include:
ru_RUfor Russianes_ESfor Spanishfr_FRfor Frenchde_DEfor Germanpt_BRfor Brazilian Portuguesepl_PLfor Polishit_ITfor Italian
Save the file and close Notepad. If Windows asks for administrator permission to save changes, confirm the prompt. Launch the application to verify if the text has updated.
Method 2: Updating the Windows Registry
If your configuration file doesn't have a language setting or the game ignores the INI change, the application likely pulls its data straight from the Windows registry.
Accessing the Registry Editor
Press the Windows Key and R together to open the Run dialog box. Type regedit and press Enter. Click Yes if the User Account Control prompt appears.
Warning: Modifying the Windows registry incorrectly can cause system instability. Follow these steps carefully and do not delete unrelated keys.
Navigate through the folder tree on the left panel to find the following path:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Maxis\The Sims 4
If you are running a 32-bit system, the path might be under HKEY_LOCAL_MACHINE\SOFTWARE\Maxis\The Sims 4.
Modifying the Locale and Audio Keys
Look at the right-hand panel for entries named Locale and GamerLocale.
- Double-click
Localeand change the value data to your target language code, such ases_ESorru_RU. - Double-click
GamerLocaleand update it to match. - Check for any other keys mentioning language or region and update them accordingly.
Close the Registry Editor and restart your computer to ensure the system cache refreshes the new registry values.
Method 3: Checking for Missing Language Files
Sometimes the registry and configuration files are set correctly, but the game still defaults to English because the actual text and audio assets for your language were stripped out of the download to save file size.
Verifying Language Packs
Open your game installation directory and locate the Data or Client folders. Inside, you will see files named with language suffixes, such as en_US.package, es_ES.package, or ru_RU.package.
If your preferred language package is missing from the folder, the game cannot display those characters or play those voice lines. You will need to find and download the specific language pack files compatible with your game version and drop them into the appropriate directory.
Always make sure the version of the language pack matches your game patch level. Mismatched versions can cause infinite loading screens or crashing upon startup.
Common Mistakes to Avoid
Fixing configuration files requires precision. A single typo will prevent the application from reading the file correctly.
- Forgetting file extensions: Make sure you don't accidentally save your INI file as a
.txtfile. It must remain.ini. - Using incorrect language codes: Typing
Spanishinstead ofes_ESwill cause the application to fail to recognize the instruction. Stick to standard localization codes. - Skipping administrator rights: If you try to save changes to Program Files without running your text editor as an administrator, Windows will silently block the save, leaving your settings unchanged.
For official information on supported localizations and official launcher settings, you can check the EA Help Portal. Keeping your game data organized ensures a smooth experience.
Frequently Asked Questions
Why does the language revert back to English after a game update?
Updates often overwrite configuration files like INI documents or reset registry entries to default values. Whenever you update your game files, you may need to open your configuration file and reapply your language code.
Can I set different languages for text and audio?
Most configuration files allow you to separate interface text from spoken voice lines if the installation includes both language packs. Look for separate entries like TextLanguage and VoiceLanguage inside your INI configuration file.
What should I do if the game crashes after changing the registry?
If the application crashes immediately after launching following a registry change, the language code you entered likely doesn't have matching files installed. Revert the registry keys back to their original values or verify that the corresponding .package files exist in your data directories.
Will changing the language delete my saved games?
No, changing configuration files or registry keys only affects how the application displays text and audio. Your saved progress lives inside your Documents folder and remains completely untouched by these adjustments.
