37 Sims 4 CAS Backgrounds to Customize Your Game
Looking for a some great Sims 4 CAS backgrounds to spice up your game?
If you’re tired of your sims posing in front of the standard (hella boring) blue screen, you’re not alone. Luckily, there are plenty of background styles that you can choose from!
Honestly, while there are definitely some faults in the Sims 4, there are also some excellent ways to make the game truly your own. Whether you’re looking for cutesy backgrounds, dreamy backgrounds or something simple like a brick background, there’s an option out there for you.
If you’re ready to spice up your game with a custom background, I’ve got a great collection of backgrounds you need to look at:
Best Sims 4 CAS Background
1. Editor’s pick: Old School Sims 4 CAS Background by LittleDica
If you’re looking for a very old school feel, the Old School Sims 4 CAS Background is for you.
This simple add-on helps bring back more of what you’d expect from a dressing room. It’s a very basic room that features a mirror, door and a splash of a plant.
There are 6 variations to choose from (though remember you can only have 1 in your mods folder at a time).
I have Style D pictured — I happen to love the bright green walls, not to mention it’s one of the best sims 4 CAS background with mirror choices I’ve found out there.
Traditional CAS Backgrounds
2. Boho Style Room by Blissfulkissessxx
If boho is more your style, then this is the room for you.
It’s a cute, neutral boho-themed bedroom, which I like because your clothing will stand out.
I like that there’s a little decor in the background, so you feel like you’re creating your sim in their actual bedroom.
It’s simple, cute, and perfect for your game.
3. Sims 4 Dressing Room CAS Background by Annett
If high-end is more your taste, the Sims 4 Dressing Room CAS Background is for you.
This pack comes with 9 different choices, but I think it’s worth noting that they have a bit more of an alpha feel to them.
Whether you want something high end and classy or simple and casual they have it.
Though you might find some of these to be a little too busy when dressing your sims.
4. In The Room CAS Backgrounds by Annette
The In The Room CAS Backgrounds set has 9 different choices that you’ll love,
These also have a more alpha feel to them and, to be fair, I’m not in love with ALL of them… but I do like the variety.
I have background 3 pictured, and it’s probably my favorite.
5. Large Room CAS Background by Katverse
If you just want a simple room, Large Room CAS Background is for you.
It’s a really simple design that’s perfect if you want something that’s not distracting. It’s perfect for those lady sims that have some wild hair to show off.
Honestly, it’s really just a large, simple room. There are no accents or any real décor.
6. Plant Lover CAS Room by Ellcrze
Plant Lover CAS Room is a cute, casual background that’s perfect for creating a sim.
The color scheme is neutral — combining taupes and whites — but the added dash of greenery provided by the plants is a great accent.
This background has a traditional feel but with some added modern elegance. Plus they’re a dressing mirror, which I happen to love.
7. Autumn CAS background by Cloudcat
If you feel like your Sims 4 dressing room needs a little autumn touch, this is the background for you.
I happen to LOVE the fall trees in the window, and the half open closet that looks like you’ve just stepped out of it.
There’s also a mirror in the background. Overall, I love this cute and cozy design.
8. Y2K CAS Room by Ellcrze
Looking for a little Y2K vibe?
This fun, bright CAS background features a lot of fun accents, though this really is something that’s personality based.
However, it’s worth noting that it might not work with all backgrounds.
9. CAS backgrounds by CTRLGIRL
While these CAS backgrounds are a little more real-looking, they’re cute and classy.
This pack has some variations in it, from the “dreaming” neon sign to a pink couch, there’s plenty to choose from.
However, I have to say that while they’re overall cute I do find them a little distracting when I’m designing the perfect sims.
10. Moving Day CAS by Ellacrze
Want to add a little more realism into your game? Try the Moving Day CAS background!
This is a really fun way to emulate your sims moving in while you’re prepping pre-move.
I’ll admit that this background is a bit busy, but it’s neutral enough that most of us will be able to use it.
It’s not a “clean” setting, but it’s practical. Pack up your Ikea furniture and let’s go!
11. Walk-in Closet CAS Background 2 by xGingerSimsx
Does your sim have a massive walk in? Then the Walk-in Closet CAS Background 2 is for you.
It’s pretty cute, emulating a brightly-lit walk in closet with lots of clean, neutral colors.
It’s a great pick of you want something different, and aren’t into the traditional bedroom scene.
12. CAS Background – Bonsai by Ellcrze
The Bonsai CAS Background has been the one I’ve been using lately.
It’s a simple background that features a standard room with a mirror and a wall of windows. The background also features a tree, along with one in the window.
Overall, I like the Zen feeling of the room. It doesn’t hurt that it has a nice plant feature.
13. Bathroom CAS Background by gmentes
This Bathroom CAS Background feels very high end.
It’s perfect if you’re looking for something a little more intimate. It’s personally a little alpha for me but overall it’s a modern, classic background.
This bathroom background features a bathtub, white counter and a glass wall.
14. CAS Background – Livin’ by Ellcrze
Honestly, I love Ellcruze’s Sims 4 CAS backgrounds.
The Livin’ option is another perfect backdrop option that has a clean feel with just enough detail to make it interesting.
The neutral color options will make sure that any outfit you’re planning will stand out against it.
But it’s considerably more interesting than the default background, I happen to love the bookshelf in the background.
15. Book Store Sims 4 CAS Background with Mirror by Ellcrze
If you’re looking for a dark academic vibe, then this Book Store CAS background is perfect.
I love the rich, dark colors that feels like an upgraded option.
16. Pedestal Sims 4 CAS Background by Gegesims
The Pedestal Sims 4 CAS Background is a simple choice that has a very high-end feeling.
This is a great option to opt for if you want your sims to look like they’re at a fancy store trying outfits on when you get them ready. I like the neutral color scheme with the hints of great – it has a clean, classy look to it.
17. Sunflower Sims 4 CAS Background by GegeSims
Another cute, colorful background that still feels very neutral is this Sunflower choice.
It’s available in 2 versions: with and without the “Sul Sul”. Both of them are pretty!
Nature-inspired CAS backgrounds
18. Island Living CAS Backgrounds by Annette
I’m a BIG fan of the Island Living expansion — which makes sense considering I currently live on a subtropical island.
These Island Living Sims 4 CAS background downloads give you access to a picture perfect island that you can use to inspire you while you design.
Number 12 is my top pick, I love the casual moonlit beach. However, this background pack gives you a number different options to pick from.
19. Fairytale CAS Background by Annette
If you’re playing a little more of a fantasy fairytale, this CAS background is for you.
This set has a handful of backgrounds that are perfect for certain kinds of Sims 4 players. If you want something a little more fantasy driven, this is where you’ll find it.
We’ve features background #5, but there are plenty of others to choose from.
20. Froggy’s Neon Subway CAS Background by HexTotem91
Froggy’s Neon Subway is a little more of a modern, contemporary look.
Of course, I realize that a subway isn’t “nature” but it’s nature of a specific sort. I like that it has a dystopian/video game feel to me.
I’ll mention that the background might be a little dark for you. However, overall it’s a really unique option for those looking for it.
21. CAS Backgrounds – University – Britechester by Annett
If you want something a little Maxis Match, this university background is perfect for you.
Again, this isn’t specifically nature, but there’s a lot of nature mixed into campus life. I love how bight and fun they are, they’re perfect if you’re playing with university-bound sims.
It doesn’t hurt that it’s currently match with a fun curly-haired sim!
22. CAS Backgrounds – Evergreen Harbor by Annett
If something a little more rough and tumble is your thing, these Evergreen Harbor CAS Backgrounds are for you.
These backgrounds are rugged, fun and perfect for some simmers. There’re a more industrial look, and due to the coloring you might have issues making SOME outfits show properly.
23. CAS Backgrounds Castle by Annett
Looking for something a little more gothic or maybe you just want to feel like royalty? The Castle CAS Backgrounds are for you.
There are a ton of indoor and outdoor choices, all with super cute designs. From touristy to gothic, there’s something in there for you.
Solid Color CAS backgrounds
24. Black and white CAS backgrounds by Katverse
Sometimes, solid colors are the best option.
If you want simple with no distractions, a black background or white background might just be perfect for you.
It’s a great way to pick something that let’s your outfit’s color pop – though you’ll need to avoid black or white (whichever one you’re using).
25. Phoenix Palette Backgrounds by Lovable Lucy
For more solid color backgrounds with a summer vibe, I recommend the Phoenix Palette by Lovable Lucy.
This orange/peachy themed set is a great choice. You can pick your favorite color and pair it with the loading screen and you have a customized Sims 4 game.
26. Beach Please CAS Backgrounds by OshinSims
Who doesn’t love a beach-themed background.
The Beach Please CAS set features solid colors that are very light and faded. I’ve pictured the sea green background.
Not only are these pretty but your sim will likely stand out against them… just remember to remove the blue blob!
27. Anjelica Roses by Lovable Lucy
If you want pretty and pink cozy vibes, the Anjelica Roses pick is for you.
You can download the pattered loading screen to make a fully-customized set up without getting too distracted.
I’ve pictured the gaia background.
28. CAS Backgrounds: The Honey Bee Edition by HcneyBeez
The Honey Bee Edition background pack is a perfect upgrade to the original background.
This set features 9 colors, including red, yellow, green and brown. I’ve pictured the sunflower background, but there are plenty to choose from.
These backgrounds have a fairly neutral tone. They’re not quite pastel, but solid and perfect for things to stand out against.
Abstract CAS backgrounds
29. Striped Studio CAS Backgrounds by Catverse
These Striped Studio CAS Backgrounds feel a bit vintage and historical to me. Honestly, they might be my favorite non-room background choices.
There are 7 different backgrounds to choose from, everything from yellow (pictured) to green and even pink. I love the classic circus look and feel of them.
30. Pink CAS background by NekoChan-Simmer
If you want to add a little pink to your game and are looking to upgrade from the original background, I like the awesome backgrounds you’ll find in the Pink CAS option.
I’ve pictured the pink sky option for my background color in the image, but there are plenty of others to choose from.
31. CAS Background Snow Flakes by Ezzking100
If you’re looking for a Sims 4 CAS background that represents colder months, the Snow Flake option is perfect.
Whether you’re feeling a little Christmasy or you simply want to celebrate the trip your sims are planning on taking to Mt. Komorebi, this is a great pick for you.
It features a dark blue background with a slightly gradient. You also get blue and white snowflakes.
32. Rose gold CAS background and loading screen by Lovable Lucy
If you want something that’s more true to the “abstract” idea, I recommend checking out the Rose Gold CAS Background set.
It has both plain colors and something a little more fun (pictured).
I like this background because it has a few color options, and while it’s fun it’s not something distracting. It won’t outshine the sim you’re creating!
34. Hearts Sims 4 CAS Background by Katverse
This hearts background is PERFECT if you love something a little more, well, love focused…
It’s abstract enough to be fun, but pretty enough to be practical. It’s an especially a great choice if you’re looking to spice your game up over Valentine’s Day.
35. Gradient CAS Backgrounds by Katverse
If you like a good gradient, this CAS Backgrounds set is for you.
Whether you want a blue background or something more fun (like the purple we have pictured) this is a great pack. This is a big improvement on the default background, and it’s not too distracting!
36. Stars and Colors CAS by Katverse
I really like the Stars and Color CAS if you want something a little more abstract.
It’s rainbow themed with fun sparkling stars built right into it. I enjoy that it’s a beautiful, unassuming background.
This is a stellar option to go with.
37. Rainbow by Busra-tr
If you want something cute and colorful, this Rainbow CAS background by Busra-tr is a great choice.
I’ll be honest, there are A LOT of rainbow themed backgrounds you can choose from but I particularly like this one because it’s unique and fun.
Not only does it add a splash of color to your game, but I find the watercolor style to be calming and less distracting than a straight-up rainbow.
38. Sims 4 CAS Background by Praleska
If you love anything vintage, you may need to consider this wonderful Euphoria CAS background!
Pick between the Mahogany, Forest, Moon, or Naval option!
How to install Sims 4 CAS background
- Download your Sims 4 CAS background into your computer
- Unzip the compressed file (if applicable)
- Place the content into your game’s mod folder
- Restart the game
Note: you can only have ONE cas background in your mods folder at a time
How to remove the shadow from your custom CAS background
Once you place your new custom Sims 4 CAS background, you’ll find that there’s still an awkward shadow blob where your sim is standing. That’s because that’s a DIFFERENT part of the game than the background itself.
Luckily, it’s really easy to get rid of!
You’ll need the background blob remover mod. Simply head to the download page, scroll down until you see the Blob/Shadow Remover mod and download it. Make sure it’s in the right place in your game, and next time you load up it should be gone!
How to remove a CAS background from your game
Removing a CAS background is a piece of cake if you know where it is.
Find the CAS background in your mods folder and delete or remove the file. It helps if you keep it in a separate folder that is easily identifiable. Your game can still access it in a secondary folder (so long as it’s housed in the right place) AND it’ll be easier to access.
You can also search your main folder or the computer in general for the CAS background file’s name and delete it that way too.
Final thoughts: Sims 4 CAS backgrounds
Using background mods is a great way to customize your Sims 4 game. And whether you’re looking for solid color backgrounds or something a little more fun, there’s a custom background option out there for you.
What I like about this particular customization route is it’s easy to do, it doesn’t require you to download anything you don’t want (sometimes you get that with full cc packs) and you can change it out if you’re not feelin’ it anymore.
Adding a background replacement to your game is a super easy way to make it feel a bit more like you… and, after all, isn’t that the kind of game we’re all looking for?
