Complete Sims 4 More Traits Mod Guide

What the More Traits Mod Actually Does (and the Fastest Safe Way to Add It)

The More Traits mod for The Sims 4 raises the number of traits each Sim can carry, letting you stack five, seven, or even more traits onto a single Sim instead of the default limit. Install it by downloading the mod files, unzipping them into your Documents > Electronic Arts > The Sims 4 > Mods folder, enabling both custom content and script mods in Game Options, then restarting the game and assigning extra traits from the Sim’s trait panel. It is generally save-safe because it adds traits to Sims rather than rewriting household or world data, but it must be kept updated after major patches, and you should back up your saves before the first install.

Compatibility at a Glance

Before downloading anything, confirm your setup matches what the mod expects. The table below reflects the general requirements these trait-expansion mods share; check the creator’s own documentation, since exact version numbers change with each patch.

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Step 1: Download the Correct Files

Download both the .ts4script file (the script that changes the trait limit) and the associated .package file (which defines any extra traits the mod adds). Many trait mods ship them together in one archive; some split them, and grabbing only the package file is the single most common reason the mod appears installed but does nothing.

The reason this matters: The Sims 4 loads scripts and packages separately, so a missing script file means the trait-limit change never fires even though the custom traits show up in Create A Sim.

Step 2: Place Files in the Right Folder

1. Open File Explorer (Windows) or Finder (Mac) and go to Documents > Electronic Arts > The Sims 4.
2. If there is no Mods folder, launch the game once so it generates one.
3. Unzip the download and move the extracted files into Mods. You can use a subfolder such as Mods\MoreTraits\ to keep things tidy.
4. Optionally delete the localthumbcache.package file in the main Sims 4 folder — the game rebuilds it, and clearing it prevents stale cached data from masking new mods.
5. Do not rename the files. Script filenames are referenced internally.

These five steps exist for one reason each: the folder location is hard-coded by the game, the subfolder keeps installation and removal clean, and the cache clear removes the most common cause of “I installed it and nothing changed.”

Step 3: Enable Mods and Script Mods

1. Launch The Sims 4 and go to Options > Game Options > Other.
2. Tick Enable Custom Content and Mods.
3. Tick Script Mods Allowed — this is a separate checkbox and is off by default.
4. Click Apply Changes, then fully exit and relaunch the game.

Per EA’s own patch notes and support documentation, script mods require an explicit opt-in because they run code, not just data. Skipping the restart leaves the mod inactive until the next launch.

Step 4: Assign the Extra Traits In-Game

1. Load a save and open a household, or start a new one.
2. Enter Create A Sim via a mirror, dresser, or Manage Households.
3. Add traits normally. With the mod active, the trait panel accepts more selections than the vanilla limit.
4. Click Confirm, then check the Sim’s profile panel to verify all traits saved.
5. If you want to change traits later, use a cheat console command or the mod’s own in-game menu, depending on the version.

Worked example: a vanilla Sim gets three traits. With the mod set to seven slots, you could give a Sim Genius, Bookworm, Ambitious, Perfectionist, Foodie, Loner, and Creative. That combination would be impossible in the base game — and it is also where balancing problems start, because several of those traits push moodlets in conflicting directions.

Configuration: Choosing How Many Slots

Most trait-expansion mods ship with a configuration file or an in-game settings menu. Typical options look like this:

• Slot count — commonly 5, 7, 10, or “unlimited.” Five to seven keeps gameplay balanced; ten or more starts to flatten the personality system.
• Trait conflicts — vanilla traits that normally exclude each other (for example, Loner and Insider) may be allowed to coexist.
• Extra custom traits — many packs bundle dozens of new traits; enabling all of them lengthens load times and crowds Create A Sim.
• Cheat or menu access — some versions let you add traits to existing adult Sims without re-entering Create A Sim.

A practical middle ground is seven slots with the bundled extra traits left on. Seven is enough to feel meaningfully different from vanilla without making every Sim a contradictory super-person, and it stays well inside the range most mod authors test against.

Save-File Safety: What Can Actually Go Wrong

The mod is low risk for existing saves, but the risks that do exist are specific and avoidable:

• Removing the mod with extra traits still assigned. Traits above the vanilla limit have no slot to return to. Before uninstalling, open each affected household in Create A Sim and reduce them back to three traits, then save.
• Unpatched game versions. A game patch can change how the trait system is indexed. If the mod is not updated for the new patch, symptoms include missing trait panel entries or a save that refuses to load.
• Conflicting trait mods. Two mods that both raise the trait cap fight over the same value. Keep exactly one.
• Outdated script caching. Deleting localthumbcache.package after any mod change resolves most phantom bugs.

Standard practice per EA’s mod guidance: copy your Saves folder somewhere safe before the first install, and again before any game patch. Restoring a backup is far faster than repairing a corrupted household.

Troubleshooting Checklist

Ownership Realities: What You Sign Up For

Trait mods are not install-once products. Every major game patch — and The Sims 4 still receives them — can break script mods until the author pushes an update. Budget for a short period after each patch where you either play vanilla or hold off on updating. Load times creep up as you add more bundled custom traits, and Create A Sim becomes noticeably more cluttered. The first thing to degrade after a patch is usually the trait panel itself, followed by the mod’s settings menu; both are normal signals that an update is pending, not that your save is damaged.

Frequently Asked Questions

Is the More Traits mod safe for existing saves?

Yes, in most cases. It adds traits to Sims rather than restructuring households or worlds, so existing saves generally continue working. Back up your Saves folder before the first install, and reduce any Sim back to three traits before removing the mod permanently.

Why isn’t the mod showing up after I installed it?

The two most common causes are an unchecked Script Mods Allowed box and files placed more than one subfolder deep inside the Mods folder. Confirm both, delete localthumbcache.package, and fully restart the game rather than just reloading a save.

How many traits should I allow per Sim?

Five to seven is the usual recommendation for balanced gameplay. Ten or more tends to blur personality differences, because nearly every Sim ends up with a similar broad set of traits. If you want variety between Sims, a lower cap does more for that than a higher one.

Can I run this alongside other mods?

Usually yes, with one exception: never run two mods that both change the trait limit, since they overwrite each other’s values. Other mod types, such as build/buy or gameplay overhauls, are generally fine but should be checked individually after each patch.

What happens if I uninstall the mod mid-save?

Sims keep their assigned traits until the game tries to validate them against the vanilla limit. Traits beyond the third slot can be dropped or cause loading errors. Edit affected Sims down to three traits in Create A Sim first, then remove the mod.

Do I need to reinstall the mod after every game update?

You do not need to reinstall, but you do need to check for a newer version from the creator and replace the old files. Script mods built for an earlier patch frequently stop working until updated, and the trait panel is usually the first thing to fail.