To add or modify language strings, you will need specific modding software:
via the EA App or Steam, or change the game language settings and then change them back to "refresh" the internal string files. Are you experiencing blank text in your game, or were you looking for gameplay mods to add new languages? How To Change Language in Sims 4 (Full 2024 Guide) sims 4 language strings new
A major base game update discovered in February 2026 includes strings for a new "Dreams" feature To add or modify language strings, you will
replaced thousands of binary text strings with a system that supports custom input Capital UK Ongoing Localization: The team is continuously updating strings This Sim is seconds away from smashing their computer
<Key>Moodlet_BadLag</Key> <String>Eternal Loading Screen</String> <Key>Moodlet_BadLag_Desc</String> <String>Why is nothing happening? This Sim is seconds away from smashing their computer.</String>
Open your project and select a row (e.g., "English").
If you are developing a mod, follow these steps to add custom text using Sims 4 Studio :