39 Best Sims 4 CAS Backgrounds to Freshen Up Your Game

Looking for an easy way to spruce up your Sims 4 CAS experience? With 36 custom Sims 4 CAS backgrounds, you’ll have the perfect backdrop for all of your Sim’s makeovers and photoshoots.

sims 4 cas background

I just love how The Sims 4 allows for so much customization. And one of the best ways to customize your sim is by giving them a fresh new background. Honestly, it’s one of the best features of The Sims game.

You can really make your sims stand out by changing up their background to match their personality type.

For example, if you’re going to create a sim for marriage, you might want to consider giving them a CAS background related to marriage. Take my word for it: it surely helps to create a sim that actually meets your needs.

And, if you are like me and LOVE to take pictures of your sims in CAS, then you know how important it is to have a good background. And let’s be honest, we all want to take amazing pictures of our Sims.🤩

P.S. Don’t forget to check out the 31+ Must-Have Sims 4 CAS Mods (Updated!) and 19+ Amazing Sims 4 Lighting Mods [Updated!].

This post is all about the best Sims 4 CAS backgrounds.

Best Sims 4 CAS Backgrounds

1. Studio Loft Sims 4 CAS Background – Ellcrze

studio loft sims 4 cas background

One of my favorite Sims 4 CAS backgrounds I’ve used is the Studio Loft. It’s perfect for giving your Sims a classic, chic look. The background comes with all the necessary decor items like furniture, artwork, and plants.

This background is also great for adding a unique twist to your sims’ environments. The mix of modern and classic elements gives this background a unique and stylish look that will impress all your Sims friends.

I highly recommend this background to anyone looking for a fresh, exciting twist on their sims’ CAS.

2. Black Rose Sims 4 Cas Background Free – Charmy-Sims

cas background cc

[RELATED POST: 25+ Sims 4 Fall CC Pieces to Embrace the Autumn Vibes]

3. Cool Sims 4 CAS Background Mod – Lovable Lucy

sims 4 cas background mod

How freakin’ cool is it that you can have different colors as your CAS background in The Sims 4?

This is probably my favorite CAS background set. There are two CAS background sets that come with it. And it also comes with a loading screen. So you can have different pictures for your loading screen, too.

Just make sure to download only one CAS background mod so your game doesn’t get messed up.

I don’t know about you, but I think these backgrounds are pretty cool. And it makes my game look a lot better.

4. Sims 4 CAS Background With Mirror – Littledica

sims 4 cas background with mirror

Want to create a realistic and stylish Sims game? Then you need to get this CAS background mod!

This background mod is still trending and super popular because it is just that good. When I first saw this CAS background, I was like, “Wow”!

This is so much BETTER than the old and outdated green one. Plus, you get a mirror behind the sim so their back image is well reflected. How cool is that?

5. Sims 4 Aesthetic CAS Background – Ellcrze

sims 4 aesthetic cas background

Here’s your chance to get a little bit more creative with your Sims looks! With these CAS backgrounds, you can have even more fun with design and make your Sims truly unique.

This is actually a recolor of Little Dica’s Old School CAS background (just above in this list), which is already a great option for your game.

But this one has a brick wall in the background and a hanging plant that adds to the overall aesthetic of your game. Plus, the colors are really eye-catching; it’s a perfect combination of modern and retro. Your Sims will definitely stand out with this background!

[RELATED POST: 31+ Best Sims 4 CAS Poses That’ll Always Make Your Sim Look Good]

6. Sims 4 Luxe CAS Background – Ellcrze

luxe sims 4 cas background

How exciting is it to get a luxurious backdrop for your Sims customization? With Ellcrze’s Luxe Sims 4 CAS Background, you can give your Sims a chic and stylish look.

This background features sandalwood color shades with the background of a piano, a violin, and a hanging plant.

This setup creates a soft, dreamy aura that’ll make your Sims look even more beautiful! It’s the perfect backdrop for creating an unforgettable look.

7. Sims 4 Vampire’s Study CAS Background Room – Thatonegreenleaf

vampire sims 4 cas background

This stunning CAS room is perfect for those who love gothic or occult gameplay in The Sims 4.

The dark color palette and intricate design of the mirror add a touch of mystery and sophistication to your Sims 4 CAS background. It’s ideal for creating vampires or other supernatural beings, giving them a spooky and luxurious space to call their own.

Whether your sims are practicing dark magic or hosting extravagant parties, this background will add an extra layer of depth to their story.

8. Witchy Lofi Sims 4 CAS Background Room With Mirror – Thatonegreenleaf

cas background sims 4 mirror

9. Sims 4 Black and White CAS Backgrounds

sims 4 black and white cas backgrounds

Everyone loves a good black-and-white photo, right? Well, now your sims can have that same classic look with these new CAS backgrounds!

Plus, they’re great for creating contrast in your pictures. If you are looking for a CAS background to edit into a certain color scheme, then this is the background for you!

You can take your photos to the next level with these new CAS backgrounds!

[RELATED POST: The Best Sims 4 Hair CC: All The Sims 4 Hairstyles You Need In Your CC Folder]

10. Halloween Sims 4 CAS Background – Ellcrze

sims 4 halloween cas background

If you’re looking to really amp up the spook factor of your Sims 4 family, then look no further than Ellcrze’s Halloween CAS Background!

This unique CAS background features a colorful, vibrant, eerie graveyard lit up by the full moon, a skull, creepy gravestones, and a dark atmosphere.

I love how the background also changes depending on the season, adding to the overall spooky feel.

And the best part? You can choose from two versions: one with a gray or one with a black wall.

[RELATED POST: 31+ Sims 4 Halloween CC: Get Ready for a Spooky Celebration]

11. That Girl Sims 4 CAS Background Mods – Vixonspixels

cas background for sims 4

I am always on the lookout for new and unique CAS backgrounds for my Sims in The Sims 4.

As someone who loves to create different personalities and stories within the game, I believe that a good CAS background can really set the tone for my Sims’ journey. And this is where Vixonspixels’ That Girl CAS background mods come in!

Aesthetic and playful, these backgrounds come in three different versions: one with a normal color scheme, a second with a pop of pink, and my personal favorite, the black and green version.

Each background perfectly captures the essence of being “That”Girl”—confident, fun-loving, and unapologetically unique.

12. Sims 4 CAS Background Room – Praleska

sims 4 cas background room

Want to try something new for your CAS background? How about this CAS background room? This set comes with three different backgrounds: one bedroom, one art room, and one rustic look.

Switch things up and make your CAS look more interesting than ever before. These backgrounds are sure to add some excitement to your Sims game.

13. Sims 4 Neon CAS Background – Thatonegreenleaf

latest sims 4 cas background

Neon lights in CAS rooms? Count me in! The moment I laid eyes on this technicolor dream, I knew my Sims were in for a treat!

There’s just something about those luminescent hues that inject a dose of pizzazz into character creation. Plus, the addition of a mirror? Genius!

It not only adds depth to the room, but watching my Sim’s reflection pop against the neon backdrop really makes their personalities shine.

It’s like a mini dance party in my game every time I use this background! 

14. Livin Sims 4 CAS Background – Ellcrze

cas backgrounds

Wow, this CAS background from Ellcrze is amazing! I love the living room setup with the mirror, plant, and books. The colors in the background are perfect for giving any female sim a stunning makeover.

I had so much fun playing around with my Sims and creating different styles. With this background, you can let your creativity run wild!

[RELATED POST: 33+ Sims 4 Career Mods: Make Your Dream Job a Reality]

15. Monblan Sims 4 CAS Background Room – Charmy-Sims

cas background sims 4 cc

16. Sims 4 CAS Background Mod – Katverse

sims 4 cas background mod sulani

I’ve said it once, and I’ll say it again: just make sure to use only one CAS background in your mods folder at a time!

These Sulani backgrounds are gorgeous and perfect for any sim who wants to get in touch with their natural side. With three options to choose from, your sim will be spoilt for choice.

Option 2 is my favorite. This will give your sim a lovely view of the seashore, with soft waves lapping at the shore. If you want to take a picture of your Sim in its natural habitat, this is the background for you!

[RELATED POST: 35+ Amazing Sims 4 Mermaid CC (Hair, Tails, Scales, & More)]

17. Indoor Garden CAS Background for Sims 4 – Thatonegreenleaf

the sims 4 cas background

[RELATED POST: 31+ Custom Sims 4 Loading Screens to Transform Your Game]

18. Sims 4 Playroom CAS Background – Ellcrze

sims 4 playroom cas background

Honestly, this Playroom Sims 4 CAS Background is a must-have for any sim player who loves to play with toddlers and kids!

The background includes a kid’s room setup that is decorated with toys, books, and more. Plus, there’s a big mirror in the background that adds to the experience of playing with younger Sims.

It’s a perfect way to create an immersive and realistic atmosphere for your Sims.

19. Urban Pastel Sims 4 CAS Backgrounds – Xurbansimsx

cas background sims 4

Bring some more excitement to your Sims 4 game by downloading this pretty pastel CAS background!

With six different pastel colors to choose from, you can easily find one that suits your taste. From pink to green, blue, yellow, and orange, these colors will definitely add some life to your game.

20. Sims 4 Bohemian Minimalist 3d CAS Background – PilarLeon

cas room

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21. Sims 4 Y2k CAS Background – Ellcrze

sims 4 y2k cas background

I’m pretty sure everyone will love how cool these backgrounds look in their games.

This background is a must-have for any Y2K or teen Sims player! However, it also comes in 36 different patterns and designs!

It has all the elements that make a perfect CAS background: soft pink walls with cute hearts and stars. Plus, I absolutely adorned the couch with a pink fluffy blanket.

You can customize your sims’ looks with futuristic and trendy clothes, hairstyles, jewelry, and accessories! And don’t forget to check out the best Sims 4 Y2K CC.

[RELATED POST: 37+ Incredible Sims 4 Barbie CC for Pixel Dolls]

22. Sims 4 Book Store CAS Backgrounds – Ellcrze

book store sims 4 cas background

When I first saw the Book Store CAS Background from Ellcrze, I was instantly excited.

Not only does it come with a beautiful wooden shade that is perfect for a cozy CAS room, but it also has a door that adds an amazing vintage feel. Plus, the hanging plants around the room, instantly create a wonderland of beauty!

23. Marina Sims 4 CAS Background – PilarLeonYT

marina sims 4 cas background

This CAS background is a simple, clean, and cozy option for your Sims 4 game. I love the aesthetic feel of this background; it adds a touch of charm to the game and makes it more visually appealing.

Plus, with its simple design, it won’t distract from your Sim’s outfit or appearance.

The colors used in this background are also really cute and give off a warm and inviting vibe.

24. Brindleton Sunset CAS Background Room With Mirror – Thatonegreenleaf

best cas background sims 4

Capture the essence of a cozy evening at home with this Create-A-Sim background.

The warmly lit room with tasteful decor and a full-length mirror reflects a relaxing sunset vibe, making it the perfect backdrop for creating Sims.

It’s an inviting space that brings a touch of Brindleton Bay’s charm right into your game.

25. Sims 4 Cottage Room CAS Background – Ellcrze

sims 4 cas backgrounds

This Sims 4 CAS background mod is not only aesthetically pleasing but also provides a cozy atmosphere for your Sims.

The hanging plants look realistic and add a nice touch to the background. The pot plants are also great for adding a bit of greenery to your Sims home.

The wall colors come in blue and white stripes, as well as a version with white and green stripes. Personally, green is my favorite; it is the perfect shade of green to bring a bit of life and color into your Sims’ home.

With this background mod, you can instantly create a cottage-living atmosphere for your Sims.

26. Catalina CAS Background for Sims 4 – PilarLeonYT

cas background

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27. Walk’n Sims 4 CAS Background – Ellcrze

sims 4 cas background room

However, if you’re looking for something with a little more personality, then Ellcrze’s Walk’n CAS Background is perfect for you.

Not only does this one-of-a-kind background feature a unique combination of colors, but it also comes with a variety of interactive objects such as doors, windows, and furniture.

With three distinct shades of brown, you can create a look that perfectly complements your Sim’s outfit. My favorite of the three The second one is a warm sandy hue that gives off an inviting and cozy atmosphere.

28. Fall CAS Backgrounds for Sims 4 – Xurbansimsx

sims 4 fall cas backgrounds

I can’t believe how stunning this Sims 4 CAS background is! I love how it comes in 19 different colors in fall-inspired collections.

How amazing is it that we can now have access to so many different colors and options for our game? This is going to make my game look so much more beautiful. Thank you for providing us with such an amazing CAS background!

29. Minimalist Sims 4 CAS Background – Ellcrze

minimalist sims 4 cas background

I highly recommend this minimalist Sims 4 CAS background by Ellcrze if you’re looking to bring a sense of calm and tranquility into your game.

The background comes in two versions, both of which feature a sandal shade and a brownish hue, with one pot plant scattered around the scene for a bit of greenery.

It’s perfect for creating a cozy, clutter-free environment for your Sims to inhabit, or if you simply want to add a bit of color to the mix.

30. Business Casual Sims 4 CAS Background Room -Thatonegreenleaf

aesthetic sims 4 cas background room

This Sims 4 CAS background is my latest obsession.

It adds a touch of professionalism and class to my Sims’ life, making them look like successful businesspeople or creative entrepreneurs.

The warm color tones give off a cozy yet stylish vibe, creating the perfect setting for my Sims to get ready and conquer their day. 💼

Plus, the creator even added a tutorial on how to make your own CAS background, so you can customize it to fit your Sims’ style and personality. How cool is that?

[RELATED POST: 23+ Stunning Sims 4 Wedding Poses For A lovely Photo Shoot]

31. SIMS 2 Inspired CAS Background For Sims 4 – Simsi45

TS2 CAS background for sims 4

It’s no secret way to show off your Sim’s great style than with a TS2-inspired CAS background. This background is perfect for any fashion-savvy Sim and is bound to make them more stylish than ever before.

The mirror behind the Sim is not only functional but also a great way to show off their fabulous outfit.

32. Moving Day Sims 4 CAS Background – Ellcrze

moving day sims 4 cas background

Just imagine the possibilities with Ellcrze’s Moving Day CAS background! This awesome background comes with all the necessary items to make your sims’ move-in day amazing.

Unpack the dorm room luggage bag, grab a stack of books for that college class, break out the comfy shoes, and hang some string lights to give the place a cozy atmosphere.

Add in some Post-it notes for a personal touch and some toys for fun, and the move-in day is complete! With this CAS background, you can create so many exciting simulations and move-in stories.

33. Flowers in Bloom Sims 4 CAS Background – Cocoa-Bee

sims 4 cas background solid colors

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34. Sims 4 Minimal CAS Background – FinJingSims 

sims 4 minimal cas background

This simple yet elegant CAS background is the perfect addition to any modern Sims player’s game. With its clean and minimalist design, it is sure to enhance the overall look of your Sims’ dressing room.

The design of the wood cabinets and the mirror adds a touch of warmth and sophistication, making it the perfect space for your Sims to get ready for their day.

My favorite aspect of this background is the mirror, with its unique and eye-catching design.

35. Elle’s Attic Sims 4 CAS Background – Ellcrze

sims 4 cute cas background

This amazing CAS background from Ellcrze is the perfect choice if you’re looking for something truly unique and special. It comes complete with a hanging clothes rack, a vintage-style violin, a selection of books, and a beautiful design wall.

The background mirror is the ultimate statement piece to make your creation truly stand out. I love the attention to detail in this CAS background; it’s full of little touches that add depth and realism.

[RELATED POST: 35 Trendy Sims 4 Christmas CC and Mods (Decor, Tree, and More!)]

36. Aesthetic Closet Sims 4 CAS Background – bbygyal123

sims 4 closet cas background

Wow, can you believe it? A set of three stunning CAS backgrounds for your Sims 4 game! These backgrounds are perfect for any sim who loves a touch of aesthetic in their lives.

Each background is based on a different wood tone, so you can choose the one that fits your sim’s style the best.

I personally love the light version with its adorable pink accents, but the medium and dark versions are just as gorgeous! Trust me, this set will be your recent obsession too.

37. Cute Sims 4 Autumn CAS Background – PilarLeon

aesthetic sims 4 cas background

38. Sims 4 Aesthetic CAS Background Mods – PilarLeon

sims 4 custom cas background

39. Sims 4 Lemon CAS Background – PilarLeon

ts4 cas background

This CAS background is perfect for those who want to add a touch of lemony freshness to their Sims 4 gameplay.

The creator, PilarLeon, has taken inspiration from the popular Lemon Wallpaper and created a fun and vibrant background for your Sims’ Create-a-Sim experience. 🍋

Adding a playful and inclusive touch, this background not only features the iconic citrus fruit but also includes cozy elements like rugs and a sofa. This creates a warm and inviting atmosphere for your Sims to create their unique looks.

[RELATED POST: 27+ Sims 4 Overrides for Personalizing Your Game (Sims 4 Default Replacements)]

40. Simfluencer Sims 4 CAS Background – largetaytertots

aesthetic cas background for sims 4

Omg! Have you seen this amazing Sims 4 CAS background by LargeTaytertots? It’s so aesthetic with a mirror in the background, and it’s perfect for creating stunning living room scenes.

The soft lighting and cozy atmosphere just add to the overall vibe of the background. I love how it incorporates both modern and traditional elements, making it versatile for any type of Simfluencer. 💁‍♀️

41. Brooklyn Sims 4 CAS Background – PilarLeonYT

aesthetic cas background

Let’s make our sims feel like they are living in the trendy and hip Brooklyn neighborhood with this amazing CAS background!

With its neutral colors and modern style, this background will surely give your Sims a cool and chic vibe.

And the best part? With mirror options, your sims can now admire their stylish selves while getting ready for a day out in the city!

42. Sims 4 Wedding CAS Background With Mirror – Pilarleon

sims 4 wedding cas background

I stumbled upon this background while browsing through different creators’ profiles, and I couldn’t resist downloading it for my own Sims 4 game!

As a big fan of weddings and dressing up in general, this CAS background immediately caught my attention.

Not only does the background feature a stunning room with a mirror, perfect for creating your virtual bride or groom, but it also includes an array of gorgeous wedding dresses to enhance your wedding-themed gameplay. 

43. Witch’s Woods Sims 4 CAS Background With Mirror – Thatonegreenleaf

best sims 4 cas background room

Transport your Sims into a mystical forest with the Witch’s Woods CAS Background Mod by Thatonegreenleaf.

This bewitching setup, complete with an ancient mirror and lush greenery, makes every outfit change feel like a magical transformation. Perfect for spellcasters and nature lovers alike, this background adds a touch of enchantment to your Sims’ dressing room.

This post was all about the best Sims 4 CAS backgrounds.

There you have it: 31 of the best Sims 4 CAS backgrounds to help freshen up your gameplay. As always, be sure to experiment to see what works best for you and your style. And don’t forget to have fun! Happy Simming 😍

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