Don’t get me wrong. I love the soft blue-green-white gradient that is TS4’s CAS setup as much as the next person.

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But sometimes the background can get repetitive. And boring.

Especially if you’re the type of Simmer who spends hours creating Sims instead of actually playing them.

Hey. No judgment here.

I’m more of a “explore the whole game” girl myself, but I have friends who are utter masters at creating gorgeous Sims. So if your CAS is starting to feel a little dull, don’t worry.

There are hundreds of CC creators who are all too happy to make alternative Sims 4 CAS backgrounds for us to enjoy.

Because this list is so massive, I’ve chopped it up into three categories: Colors & Patterns, Scenes & Backdrops, and Pop Culture Scenes & Concepts. Enjoy!

Colors & Patterns

Pretty straightforward.

These are CAS backgrounds that have simple designs, colors, and patterns that aren’t meant to depict anything (i.e., a street scene, a building, etc.).

1. Luumia CAS Overhaul 2

Let’s start with something clean and simple.

Luumia’s CAS Overhaul 2 offers some pretty great replacements for the Sims 4 default CAS setup.

Aside from immersive lighting (which gives your Sims a lot more depth) and an eye specular remover for Pets, you also get to choose the color of your CAS background: 5 pastel gradients and 7 solid color options.

Absolutely perfect if you want no fuss, no muss, and no frills. I personally prefer the solid white background – just because it makes every color on my Sims pop.

2. SnowKimx’s Cute CAS

This CAS BG feels so much like the wallpaper of the spacey, galaxy-loving kid’s bedroom, and I am here for it.

The doodled stars and planets on a soft blue background coupled with cotton-candy clouds outlined in chalk?

Way too cute. You have to try it.

3. busra-tr’s Rainbow

If SnowKimx’s BG was for the kid obsessed with stars and planets, busra-tr’s Rainbow CASBackground is for the full-on artsy kid who loves fingerpainting and hand-print painting.

It’s a full screen of rainbow splotches that’s pretty much wholly psychedelic with a dash of multi-colored lava lamp.

And I mean that in the best way.

4. KatVerseCC’s Stars n Colors

Speaking of psychedelic, KatVerseCC’s Stars n Colors CAS Background is a pretty good blend of “unicorn drink colors” and “actual sparkles.”

Who would have thought this combination would work?

I didn’t, but clearly the creator is a visionary.

It’s not as wallpaper-y as the previous two, but it’s definitely just as fun.

5. KatVerse’s Striped Studio CAS

We’re back in wallpaper territory, but I honestly can’t be mad.

Not when the wallpaper is this cute.

Simple candy-colored stripes provide a simple but stunning backdrop for all your gorgeous and quirky Sims.

There are eight color options too, in case you feel like switching it up from time to time. My favorites have to be mint and purple.

6. UrbanSims’s Fall CAS Backgrounds

So the link will lead you to a whole page of several CAS background color packs.

The one I picked was the first pack, which is the creator’s Fall CAS Backgrounds pack.

But I do recommend exploring the other packs on this page if golden, earthy, and warm tones aren’t exactly your vibe.

FYI I tried the Urban Pastel CAS Backgrounds pack, too. Talk about your bubblegum pink.

Anyway the Fall CAS pack has 18 gorgeous solid color options to choose from. And as I mentioned earlier, they’re all warm, golden, earthy tones.

What’s great is that each color has its own individual download link, so you can definitely just pick the shade that catches your eye.

I went for #9, which is a muted mossy green that just demanded my attention.

7. KatVerse’s Camo CAS Background

The StrangerVille game pack introduced us to the Military career.

Why not design a soldier in front of a background that matches?

This unique camo-print CAS background is another one of KatVerse’s unique creations.

It might not be everyone’s cup of tea – especially if your Sim sports a lot of greens and browns – but just know that lighter colors pop quite well. A definite plus.

8. KatVerseCC’s Marble CAS Background

Is everything on this list from KatVerse/KatVerseCC?

Nope. But you can’t deny that they make awesome backgrounds.

And this blue-white-gray marble background is no exception.

I’m someone obsessed with water themes and water patterns, so I absolutely had to include this.

It’s all artistic ripples and watery streaks. Makes me think of a huge floor-to-ceiling painting in some high-end art gallery that my Sims would visit on vacation.

Point is, I love it. And I hope you do, too.

9. KatVerseCC’s Grey Grunge CAS Background

This one has that photo-studio-backdrop feel to it that I think is pretty fun.

And if you can download custom CAS poses for your Sim, it would make for some truly excellent shots.

Especially if your Sim prefers the grunge-y street, casually urban fashion.

10. KatVerse’s Colorful Gradient

If the rainbow splotches from item number 3 were too colorful and defined, and the solid colors from number 1 are too plain, I give you a viable middle ground: a gradient.

Specifically three gradients from KatVerse.

I tried the third option – which is this lovely soft blend of blues with some purple – and I gotta say; it is so pretty!

Zooming in on your Sim also gives you this nice soft color wash.

11. KatVerseCC’s Wooden Floor CAS Background WF01

This one kinda feels like the grunge background, only less “artfully scuffed.”

Also; there’s a wooden floor.

In all seriousness, I can appreciate this one for its simplicity.

And its “performing arts” feel.

Your Sim is perfectly positioned to look like its standing on the floor, and the spotlights above make it feel like a stage setting.

Zooming in doesn’t pixelate the texture too much either, which I think is pretty great.

12. KatVerseCC’s Stars CAS Background

This one feels very much like a prom photo studio backdrop, but in the best way.

Darker colors to get a little lost in the black backdrop (and some shades of black sort of disappear), but the lack of functionality doesn’t really bother me.

Not when I’ve got my Sims standing in front of a background so gorgeous and classy.

Zooming in sort of blurs the stars, but I find it looks pretty artful that way, too.

Like you took a star brush in Photoshop and swiped it across the top.

Scenes & Backdrops

These CAS backgrounds depict an actual physical setting using scenery images.

They basically look like blown up landscape photos for your Sim to stand in front of.

Common themes are nature-y backgrounds (like parks, trees, forests) and modern, urban settings (like buildings, housing interiors, commercial backdrops).

13. Nowa2000’s Fantastic Landscape

Starting us off is this fantasy world background pack from Nowa2000.

It’s a set of 10 different CAS backgrounds all depicting fantastical and futuristic worlds.

For instance, the third option has some pretty alien-looking plants growing in the background, and the second one looks like there’s an honest-to-goodness spaceship in the background.

I thoroughly enjoyed this pack for the fantastical aspect, as I’m a self-proclaimed fantasy nerd.

My favorite has to be option seven because I’m also a sucker for ruins.

14. KatVerse’s Forgotten Grotto HL04

This CAS background from KatVerse (again) is yet another perfect Maxis-Match-masterpiece.

The elements have that same clayified feel of all Sims 4 objects – especially the rocks and the crystals.

This makes it by far one of the most immersive CAS backgrounds on this list; it really looks like your Sim has wandered into some sort of forbidden grotto for the sake of a really sweet photoshoot.

15. KatVerse’s Winter Wonderland

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