Did you know that you can change the default TS4 background with a custom Sims 4 CAS background?
Yep. That’s right! In this catalog, I’ve included my favorite Sims 4 backgrounds including Sims 4 CAS backgrounds with mirror, Sims 4 CAS background solid color, Sims 4 aesthetic CAS background, and more!
*NOTE: Some of these backgrounds were crafted by Ellcrze, whose Patreon is currently inactive. Don’t worry, I have found the archive and included some of the SFS links in this post!
Sims 4 CAS Backgrounds
After downloading your favorite Sims 4 CAS background, remember to move the .package file into your Mods folder.
No matter which style you choose, remember to only have 1 active CAS background at a time so your game can work properly.
Just in case you have a blue shadow or blob in the middle of your CAS screen, consider downloading this blob remover by URBANSIMS.
MOVING DAY Sims 4 CAS Background with Mirror by Ellcrze
With all the clutter and boxes around her, this Sims 4 CAS background with mirror can make your Sim look like she’s in the midst of moving!
NOTE: As Ellcrze Patreon is currently inactive, you may not be able to access her CC from there. However, someone has made an archive for *some* of Ellcrze’s creations on SFS.
READ: What happened to Ellcrze?
Keep scrolling to find more of Ellcrze’s backgrounds (at the bottom of this list)
Autumn Sims 4 CAS Background with Mirror by Cloudcat
It gives the vibe of tranquility and you can almost feel the autumn breeze right there.
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Abstract Sims 4 CAS Background by StarrySimsie
This is such a gorgeous CAS background for TS4!
HOME Sims 4 CAS Background by oshin
If you want some classy or elegant Sims 4 CAS background, solid color is something worth trying!
And if you’re looking for solid color Sims 4 CAS background you should consider this gorgeous one! The colors resemble the fall season. Go pick the one that you love the most!
SOLID PINK Sims 4 CAS Background by Sims_Lover14333
Looking for a pink CAS background for Sims 4? Then, definitely check this out! You can choose from different shades of pink!
AIRY PALETTE Sims 4 CAS Background by Breezytrait
Lavender Sims 4 CAS Background by Shasim
Shasim creates various CAS background packs that are all gorgeous! I have included some of them in this list!
This lavender CAS background is simply beautiful!
If you are a purple color lover, do check out this item!
Earth Tone Sims 4 CAS Background by Lucid Simmer
Do you need a boho CAS background? Consider this Sims 4 neutral color CAS background that look so aesthetic!
Brown Sims 4 CAS Background by Shasim
Do you love chocolate, latte, coffee, and other brownish colors? If so, you should take a look at this Sims 4 CAS background pack!
Peach Sims 4 CAS Background by Shasim
This is one of my favorite Sims 4 solid color CAS backgrounds! It has various colors to choose from and they are all pretty!
Look at that cheerful palette, how can you not fall in love with it instantly? You need to check this out!
Nature CAS Background by Shasim
This one is also too good to miss! If you are a huge fan of green colors, please remember to check out this satisfyingly-pretty green CAS background pack!
The Sims 4 CAS Background by KatverseCC
As you can see, there are various types of The Sims 4 CAS backgrounds. Now, if you want something with marble vibe, go check out this one!
Mt. Komorebi CAS Background by Katverse
Get the sensation of dressing up your sim in the snow using this snowy CAS background!
The Sims 4 CAS Background by LaSkrillz Gaming
Sims 4 pink CAS background for pink lovers!
This pink room CAS background can be a great idea when you want a pink color CAS screen with a “room” vibe instead of solid color.
PINK ROSE Sims 4 CAS Background by HexeSims
If you need more options for pink CAS background, check this out!
From soft pink to bluish color and purplish pink, there is something pretty in this background set!
NOVEMBER VIBES CAS Background by HexeSims
Another solid color Sims 4 CAS background by Hexe Sims. This one is perfect for yellow and brown color lovers! You can choose the perfect color that suits your preference!
Solid Color Sims 4 CAS Background by Helgatistha
Dark CAS background with various color swatches available.
Phoenix Palette CAS Background by lovable lucy
Pedestal Sims 4 CAS Background by Gegesims
Sunflower Sims 4 CAS Background by GegeSims
It’s available in 2 versions: with and without the “Sul Sul”. Both of them are pretty!
Walk In Closet CAS Background by xGingerSimsx
Looking for a walk-in closet CAS background for Sims 4 ? Do check out this one!
Bathroom Sims 4 CAS Background by Gmentes
Not everyone has a glam bathroom. And not everyone has the capability to design a luxurious bathroom for their sim. Don’t worry, with this super cool CAS background, you can take a portrait as if your sim is inside her glamorous bathroom!
Cute Sims 4 CAS Background by SnowKimx
If you love kawaii wallpaper, then you should try this CAS background to make your Sim’s CAS portrait look even cuter!
Striped Studio Sims 4 CAS Background by KatverseCC
If you love stripes, you may need to check this out! There are 8 color options available that you can choose from after downloading and unzipping the file!
Sims 4 CAS Background by Katverse
Daisy Sims 4 Floral CAS Background by KatVerseCC
A cute CAS background for Sims 4!
If you need pink CAS background or floral-themed CAS background consider this one!
Hearts Sims 4 CAS Background by Katverse
Sims 4 CAS Background by Praleska
If you love anything vintage, you may need to consider this wonderful CAS background!
Pick between the Mahogany, Forest, Moon, or Naval option!
Sims 4 CAS Background CC by Blissfulkissesxx
You can change your Sim’s outfit with this CAS background as if your Sim is changing her dress in her bedroom!
Sims 4 Background CC by Inaxy
You can consider this background if you want your CAS to have some modern homey look!
Galaxy CAS Background by Ezzking100
How amazing is that?!! This galaxy CAS background can hugely elevate your Sim’s CAS portrait!
Anime Sims 4 CAS Background by Annett
Looking to elevate your CAS experience even more? Don’t forget to try Sims 4 CAS cheat.
MINIMALIST Sims 4 CAS Background with Mirror by Ellcrze
This Ellcrze CAS background is so aesthetic!
If you want an elegant, classy look for your sim portrait, do check out this MINIMALIST CAS background by Ellcrze!
Simple Sims 4 CAS Background with Mirror by Ellcrze
Bonsai Sims 4 CAS Background with Mirror by Ellcrze
Mirror CAS Background by Ellcrze
Aesthetic Sims 4 CAS background for plant lovers. It’s called “Plant Lover”.
Book Store Sims 4 CAS Background with Mirror by Ellcrze
As with any default CAS background, please only use 1 CAS background at a time so your game can work properly.
LIVIN’ CAS Background with Mirror by Ellcrze
Ellcrze is such a talented Sims 4 custom content creator. She also makes pretty CAS backgrounds for us to download!
It’s easy to get stunned by this Sims 4 background simply because of how aesthetic it looks!
How do you get CAS background on Sims 4?
Start by googling Sims 4 custom CAS background. Find a curation post like this or go directly to a Sims 4 CC creator’s page and choose your favorite TS4 background. Then, download the CAS background file(s) into your computer.
How do you change the background in Sims 4 CAS ?
- Download your favorite Sims 4 CAS background from this list. If it’s zipped, extract it into .package files.
- From all of the backgrounds that you have downloaded, pick 1 that you truly want to try. Remember, it needs to be a .package file.
- Put that 1 specific file into your Mods folder. My Documents >> Electronic Art >> The Sims 4 >> Mods.
- Launch the game and enable custom content under the GAME OPTIONS.
- Click on NEW GAME and go to CAS (Create A Sim) mode.
- In the CAS you should see the background automatically changes according to the background CC you have chosen.
How do you unlock full CAS?
To unlock full CAS you can use The Sims 4 CAS Full Edit Mode Cheat. Here is how:
- In The Sims 4 game, open the cheat console by pressing Ctrl + Shift + C (on a PC) or Command + Shift + C (on a Mac).
- In the cheat console, type “testingcheats true” (without the quotes) and press Enter. This will enable cheat mode.
- Type “cas.fulleditmode” and hit enter.
- Shift-click on a sima nd choose “Modify in CAS”.
- Welcome to the CAS Full Edit Mode and you should notice additional options and features that were previously locked.
SEE ALSO: Sims 4 CAS Challenges
Sims 4 CAS Backgrounds can make the game 10x times better!
Sims 4 CAS backgrounds (or possibly called Sims 4 CAS background CC) allow you to add a unique and personalized touch to your Sim’s portrait.
Remember to only have 1 active CAS background at a time. You can pick your favorite one in your mods folder and keep the other backgrounds in a separate folder.
I hope you will find the game more enjoyable with these Sims 4 CAS backgrounds. If you enjoyed this post, don’t forget to check out my post about Sims 4 Custom Loading Screen.