Package vs TS4Script in Sims 4: What Is the Difference?

The short answer is this: .package files are the most common Sims 4 mod files and usually contain custom content, overrides, or tuning changes, while .ts4script files are used for script-based mods and often need Script Mods Allowed turned on in the game settings.

If you are confused because a download contains both, that is normal. Some mods use a .package file for resources and a .ts4script file for logic.

What is a .package file in The Sims 4?

A .package file is the standard format used by most Sims 4 custom content and many regular mods.

Typical examples include:

• clothing and hair CC
• furniture and build items
• default replacements
• map replacements
• many non-script gameplay tweaks

If you download a Chatelain map replacement, it will normally be a .package file.

What is a .ts4script file in The Sims 4?

A .ts4script file is usually part of a script mod. These are mods that add coded behavior, more advanced gameplay systems, or custom interactions.

Examples often include:

• larger gameplay overhauls
• UI and interaction extensions
• mods that add new systems or custom menus

Script mods are the main reason the Script Mods Allowed setting exists.

Which one is more common?

.package files are much more common for everyday players. If you mostly use CC, visual overrides, or map replacements, you will probably see .package files far more often than .ts4script files.

Do both file types go in the Mods folder?

Yes. Both .package and .ts4script files normally go inside:

• Windows: Documents\Electronic Arts\The Sims 4\Mods
• Mac: Documents/Electronic Arts/The Sims 4/Mods

If you are not sure where that is, the full folder guide is here: Where Is the Sims 4 Mods Folder?.

Do both need custom content enabled?

Yes. If you want either file type to load, Enable Custom Content and Mods should be on.

For .ts4script files, you should also turn on Script Mods Allowed.

What happens if Script Mods Allowed is off?

If a mod depends on a .ts4script file and that setting is off, the script portion usually will not work correctly. The mod may partly fail, disappear, or behave in a broken way.

That is why many players think a mod is "not showing up" when the real problem is just the script setting.

Why do some downloads include both file types?

Because the creator may split the mod into two roles:

• .package for assets, tuning, or related data
• .ts4script for code-driven functionality

If the instructions say to keep both, keep both.

Can I delete the .ts4script and keep the .package?

Usually no, not if the mod is designed to use both. Removing one half can break the mod or make it work only partially.

Follow the creator instructions rather than guessing which file is optional.

Are map replacements script mods?

Usually no. Most map replacements, including Chatelain's, are simple .package files and do not depend on script behavior.

That makes them a great beginner-friendly category if you are new to modding.

Which file type should beginners start with?

Beginners should usually start with simple .package installs first:

• visual overrides
• build and buy CC
• hair and clothing CC
• map replacements

They are easier to test and easier to remove if something goes wrong.

Quick rule to remember

Use this mental shortcut:

• .package = common Sims 4 mod or CC file
• .ts4script = script-driven mod file

It is not the full technical story, but it is accurate enough for most players.

If your mod still does not work

If you already understand the file type but the mod still is not appearing, check Why Sims 4 Mods Are Not Showing Up.

If you have not installed anything yet, start with the main How to Install Sims 4 Mods guide.

FAQ

Is a .package file the same as a .ts4script file?

No. They are different file types and often serve different roles inside Sims 4 modding.

Do I need Script Mods Allowed for .package files?

Not usually. Many regular .package files only need Enable Custom Content and Mods. Script-based setups are the ones that usually require the extra script setting.

Can a mod include both .package and .ts4script?

Yes. That is very common for more advanced gameplay mods.

Are Chatelain map replacements .package or .ts4script?

They are normally .package files, which makes installation straightforward.

Which is safer for beginners?

Simple .package installs are usually easier for beginners because they involve fewer moving parts and less setup.