How to Edit Sims In-Game in The Sims 4

The Sims 4 gives players a surprising amount of control over their Sims even after the initial creation process. Whether you want to tweak a hairstyle, reshape a face, or completely overhaul a Sim's personality, several in-game methods let you make changes without starting over. How far you can go — and which method works best — depends on what exactly you want to change and where you are in your gameplay.

The Main Ways to Edit a Sim After Creation

Using the "Edit in CAS" Cheat

The most comprehensive editing method is returning your Sim to Create-a-Sim (CAS) using a built-in cheat code. This gives you access to nearly everything you had when first building the Sim.

To do this:

1. Open the cheat console with Ctrl + Shift + C (PC/Mac) or by holding all four shoulder buttons simultaneously on console
2. Type testingcheats true and press Enter
3. Type cas.fulleditmode and press Enter
4. Close the console, then Shift + Click on the Sim you want to edit
5. Select "Modify in CAS" from the menu that appears

This unlocks full editing access — body shape, facial features, skin tone, clothing, traits, and even name. Without cas.fulleditmode enabled, Shift + Clicking a Sim only gives limited options like changing their outfit for the current category.

Editing Through the Dresser or Mirror

For clothing and style changes only, you don't need cheats at all. Clicking on a dresser, wardrobe, or mirror gives your active Sim options like:

• "Change Outfit" — swaps what they're currently wearing
• "Plan Outfits" — opens a limited version of CAS focused on clothing, accessories, and hair for each outfit category (Everyday, Formal, Athletic, etc.)

This is the fastest route when you only want to refresh a look without touching build sliders or traits. 🎮

Editing Traits and Aspirations Mid-Game

Traits and aspirations are slightly different from physical appearance — they affect gameplay behavior, not just looks.

• Traits cannot be changed freely without cheats. The cas.fulleditmode method above makes them editable in CAS.
• Aspirations can be switched at any time through the Aspiration panel in the bottom-right UI — no cheats required. Switching aspirations resets progress on the current one but unlocks a different reward trait track.
• The Reward Store (accessed through the aspiration panel) lets Sims spend Satisfaction Points on traits like "Entrepreneurial" or "Never Weary," which stack on top of base traits.

What You Can and Can't Change Depending on Method

Editing Non-Active Household Members

You can only directly control and edit active household members — Sims currently living in the played household. To edit an NPC or a Sim from another household:

• Move them in temporarily, make edits, then move them back out
• Use the "Manage Worlds" screen to enter another household and play it directly, applying cheats from there
• Some players use Manage Households in the main menu to edit unplayed households in CAS before loading a save — though this varies in availability depending on game version and expansions installed

Editing Sims With Expansion or Game Pack Content

Certain expansions and game packs add additional CAS layers worth knowing about:

• Seasons adds weather-appropriate outfit categories
• Vampires, Werewolves, and Spellcasters (from their respective packs) have unique CAS sections for supernatural features — fangs, fur patterns, magical aesthetics — only accessible if those packs are active
• Skin detail overlays, body hair, and additional sliders introduced in base game updates after launch are available to all players regardless of packs

The cas.fulleditmode cheat unlocks all CAS content you have installed, so pack-specific features will appear if those packs are in your library. ✅

Factors That Shape Your Editing Experience

A few variables determine exactly what your editing session looks like:

Platform: PC and Mac players have keyboard shortcut access for cheats. Console players (PlayStation, Xbox) use controller button combinations to open the cheat console — the process works the same but feels different in practice.

Game version: The Sims 4 has received significant free updates that added body hair, improved skin tones, and additional sliders. Players on older or unpatched versions may see a more limited CAS than current players.

Installed content: The more packs you have, the more CAS options appear. A base-game-only install has fewer clothing items, hairstyles, and customization sliders than a fully expanded library.

Mods: Many players extend CAS further using custom content (CC) and mods from the community — additional sliders, clothing items, skin overlays, and more. These are player-created additions not officially supported by EA, and their stability depends on keeping them updated alongside game patches. 🛠️

When Edits Take Effect

Changes made through cas.fulleditmode apply immediately when you confirm and exit CAS. Outfit changes via mirror or dresser apply the moment you select them. There's no cooldown or restriction on how often you can return and edit — the only real limit is that certain trait combinations have in-game logic restrictions (like conflicting personality traits that can't coexist on the same Sim).

How much editing flexibility you actually need — and which method fits your play style — comes down to what you're trying to change, how often you revisit Sim customization, and whether you're comfortable enabling cheats in your save file.