The Sims 4 Mods

The Sims 4: Breakdown of Buff Mods

MTS Zerbu 1477398 Pleasure5

The latest patch has made a small change to the XML code used in buff files, renaming “gameplay_effect_modifiers” to “gameplay_effect_modifier” (note the lack of plural). In this small change, buffs that use the old name no longer work.

This means that gameplay modifiers, such as changes to need and skill rates, applied to buffs will no longer work. This includes the vast majority of custom traits.


I have created a special tool that reads .package files and automatically performs a find-and-replace on buff resources. If you are a mod user, you can simply run the program and you’ll be able to use the mods again without redownloading anything (assuming that nothing else broke with the patch). If you are a mod creator, you can run the program and then reupload the package.

You can run the repair tool on multiple .package files at once. I recommend running it on every gameplay mod you have, to ensure that all the effects work properly.

You can download the tool by clicking the download button below!


About the author

Zerbu Tabek

I have an interest in computers and technology, and have been learning programming since I was as young as 12. Years down the line, I learned other coding and programming languages, both used online and offline. Now, I have combined my programming ability with my love of The Sims to become a modder.

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