If you’re anything like me, you love to play around with The Sims 4 Create-A-Sim (CAS) feature. It’s so much fun to create different sims with unique personalities and appearances. But sometimes, the default CAS backgrounds can get a little bit boring. That’s why I’ve compiled a list of 44 awesome custom Sims 4 CAS backgrounds that you can use to change up the look of your game.
From solid colors to pretty patterns, there’s sure to be a background on this list that you’ll love. So go ahead and download your favorites – they’re all free!
1. Old School Cas Room
This mod was created by Littledica and it changes the CAS background to a more old-school look.
This is not just any old background; it’s meant to give you those classic, trouble-free vibes from the original Sims 2 and 3 where we made our sims in a random room featuring an ornate mirror. The simple textures are great for nostalgia but don’t expect quality photos if that’s what you’re looking forward to!
2. Purple CAS Background
This mod was created by Shasims and it changes the CAS background to a solid purple color.
I love this mod because it’s such a pretty, calming color. It’s also great for cutting out sims from screenshots (as you can see in the example below).
You can have different shades of purple in your game by using this mod.
3. Alice | CAS Background
This mod was created by Flirty Sim and it changes the CAS background to a blue ombre color.
This cool patterned CAS background is sure to make your sims stand out in any photo. It would be perfect for taking stylish, trendy photos without having the hassle of removing things like UI or adding items that match what you’re wearing!
4. Anime CAS Background
This mod was created by NekoChan-Simmer and it changes the CAS background to an anime-inspired wallpaper.
I know there are a lot of people out there who also love Anime. With these CAS backgrounds, you can have an awesome photoshoot that will have all your friends asking where you got that amazing background.
5. Nightfall CAS Background
This mod was created by sprouts-lentil and it changes the CAS background to a starry night sky.
This is such a pretty and unique CAS background! It would be perfect for those who want to take pictures of their sims under the stars.
6. Brown CAS Backgrounds
This mod was created by Shasims and it changes the CAS background to a light brown color.
This is a great mod for those who want a more natural look for their sims. The light brown color will help your sims blend in with the background and look like they’re part of the scenery.
Additionally, this mod is perfect for cutting out sims from screenshots!
7. Sulani CAS Background
This mod was created by Katverse and it changes the CAS background to different locations in Sulani.
With this mod, you can have your sims pose in front of some of the beautiful locations from The Sims 4 Island Living expansion pack. From the crystal-clear water to the stunning sunsets, there’s a CAS background for everyone.
8. CAS Background Room
This mod was created by Atliasimmer and it changes the CAS background to a room with different props.
With this mod, you can change the CAS background to a room with different furniture and props. This is perfect for those who want to take pictures of their sims in different settings without having to leave CAS.
You can also use this mod to take pictures of your sims with their pets!
9. Pink CAS Background
This mod was created by NekoChan-Simmer and it changes the CAS background to a solid pink color.
This is a great mod for those who want a more playful and fun look for their sims. The pink color will help your sims stand out in any photo.
It’s also perfect for cutting out sims from screenshots!
10. Green CAS Backgrounds
This mod was created by Shasims and it changes the CAS background to different shades of green.
This is a great mod for those who want a more natural look for their sims. The different shades of green will help your sims blend in with the background and look like they’re part of the scenery.
11. Britchester University CAS Background
This mod was created by Annett85 and it changes the CAS background to the university in Britchester.
With this mod, you can have your sims pose in front of some of the iconic buildings from The Sims 4 University expansion pack. From the imposing clock tower to the grandiose library, there’s a CAS background for everyone.
12. Pride CAS Backgrounds
This mod was created by NekoChan-Simmer and it changes the CAS background to different colors of the Pride flag.
This is a great mod for those who want to show their support for the LGBTQIA+ community. The different colors of the Pride flag will help your sims stand out in any photo.
13. Beach Please Backgrounds
This mod was created by Oshinsims and it changes the CAS background to different locations on the beach.
With this mod, you can have your sims pose in front of some of the beautiful locations from The Sims 4 Island Living expansion pack. From the crystal-clear water to the stunning sunsets, there’s a CAS background for everyone.
14. Evergreen Harbor CAS Background
This mod was created by Annett85 and it changes the CAS background to the town of Evergreen Harbor.
With this mod, you can have your sims pose in front of some of the iconic buildings from The Sims 4 Snowy Escape expansion pack. From the snow-capped mountains to the traditional Japanese houses, there’s a CAS background for everyone.
15. Kawaii CAS Backgrounds
This mod was created by Miunachan and it changes the CAS background to different kawaii (cute) designs.
With this mod, you can have your sims pose in front of some of the adorable designs. From kittens to unicorns, there’s a kawaii CAS background for everyone.
16. Christmas CAS Backgrounds
This mod was created by Mosaica and it changes the CAS background to different Christmas designs.
With this mod, you can have your sims pose in front of some of the festive designs. From Christmas trees to snowflakes, there’s a Christmas CAS background for everyone.
17. Mt. Komorebi CAS Backgrounds
This mod was created by Katverse and it changes the CAS background to different locations in Mt. Komorebi.
With this mod, you can have your sims pose in front of some of the beautiful locations from The Sims 4 Snowy Escape expansion pack. From the snow-capped mountains to the traditional Japanese houses, there’s a CAS background for everyone.
18. Pastel CAS Backgrounds
This mod was created by Xurbansimsx and it changes the CAS background to different pastel colors.
With this mod, you can have your sims pose in front of some of the beautiful pastel colors. From pink to blue, there’s a pastel CAS background for everyone.
19. Black & White CAS Backgrounds
This mod was created by Katverse and it changes the CAS background to different black and white designs.
With this mod, you can have your sims pose in front of some of the beautiful designs. From flowers to geometric shapes, there’s a black & white CAS background for everyone.
20. Vintage Solid Color CAS Backgrounds
This mod was created by Sikoi and it changes the CAS background to different vintage solid colors.
With this mod, you can have your sims pose in front of some of the beautiful colors. From pink to green, there’s a vintage CAS background for everyone.
21. Blue CAS Backgrounds
This mod was created by Shasimss and it changes the CAS background to different shades of blue.
With this mod, you can have your sims pose in front of some of the beautiful colors. From light blue to dark blue, there’s a blue CAS background for everyone.
22. Nighttime Room CAS Backgrounds
This mod was created by Artor and it changes the CAS background to different nighttime rooms.
With this mod, you can have your sims pose in front of some of the beautiful designs. From cityscapes to stars, there’s a nighttime room CAS background for everyone.
23. Rainbow Solid Color CAS Backgrounds
This mod was created by Pixiv and it changes the CAS background to different rainbow colors.
With this mod, you can have your sims pose in front of some of the beautiful colors. From red to purple, there’s a rainbow CAS background for everyone.
24. Neon Solid Color CAS Backgrounds
This mod was created by Pixiv and it changes the CAS background to different neon colors.
With this mod, you can have your sims pose in front of some of the beautiful colors. From pink to green, there’s a neon CAS background for everyone.
25. Galaxy Solid Color CAS Backgrounds
This mod was created by Pixiv and it changes the CAS background to different galaxy colors.
With this mod, you can have your sims pose in front of some of the beautiful colors. From pink to blue, there’s a galaxy CAS background for everyone.
26. Abstract Art CAS Backgrounds
This mod was created by S-Club and it changes the CAS background to different pieces of abstract art.
With this mod, you can have your sims pose in front of some of the beautiful designs. From flowers to geometric shapes, there’s an abstract art CAS background for everyone.
27. Nature CAS Backgrounds
This mod was created by S-Club and it changes the CAS background to different nature scenes.
With this mod, your sims may take pictures in front of some of the stunning locations. There’s a nature CAS background for everyone from mountains to forests.
28. City CAS Backgrounds
This mod was created by S-Club and it changes the CAS background to different city scenes.
With this mod, your sims may take photos in front of some of the world’s breathtaking locations. There is a city CAS background for everyone from New York to Tokyo.
29. Animated CAS Backgrounds
This mod was created by Ici and it changes the CAS background to different animated gifs.
With this mod, your sims may take photos in front of some of the stunning patterns. For everyone, there’s an animated CAS background that includes flowers to geometric designs.
30. Black & White Floral CAS Backgrounds
If you want your sims to look more demure and elegant, this is the perfect mod for them. The new background changes their CAS pose into something much quieter with beautiful floral designs that would be right at home in a museum or even on an old boudoir portrait!
31. Black & White Cityscape CAS Backgrounds
This is the perfect mod for the sim who loves to travel and see the world but never seems to have the time (or money) to do so! With this new background, they can at least feel like they’re in front of some of the most amazing cityscapes without ever having to leave the comfort of their own home.
32. Black & White Nature CAS Backgrounds
Is your sim a nature lover? If so, they’re going to love this new background! With this mod, they can have their photo taken in front of some of the most beautiful natural backdrops without ever having to leave the safety of their own home.
33. Vintage Black & White CAS Backgrounds
This is the perfect mod for the sim who loves all things vintage!
34. Animated Rainbow CAS Backgrounds
This mod was created by Ici and it changes the CAS background to different animated gifs.
With this mod, your sims may take photos in front of some of the stunning patterns. For everyone, there’s an animated CAS background that includes a rainbow of colors.
35. Rainbow Solid Color CAS Backgrounds
With this awesome mod, you can have your sims pose in front of some beautiful colors. From pink to purple there is a range for every taste!
36. Cute Animal CAS Backgrounds
This mod was created by S-Club and it changes the CAS background to different cute animals.
With this mod, you can have your sims take pictures with some of their favorite animals. From bunnies to kittens, there is an animal CAS background for everyone.
37. spooky Animal CAS Backgrounds
Have you always loved the spooky atmosphere of a haunted house? Well, now your games can have this too! This mod changes CAS background from neutral colors to various creepy animals.
You’ll be able take pictures with some favorite creatures like bats or spiders- just which one is right for you?
38. Kawaii Food CAS Backgrounds
This mod was created by S-Club and it changes the CAS background to different cute food items.
With this mod, you can have your sims take pictures with some of their favorite kawaii foods. From sushi to cupcakes, there is a food CAS background for everyone with a sweet tooth.
39. White Brick Wall
This CAS background by Nyx is perfect for anyone who wants a more modern look for their game. The white brick wall gives off a cool, urban vibe that would be great for any sim.
40. Navy Blue Marble
This CAS background by Nyx is perfect if you want something a little bit more glamorous. The navy blue marble looks luxurious and would be great for any sim who wants to feel like a celebrity.
41. Black and White Bathroom
This CAS background by Nyx is perfect for sims who want to get ready in style. The black and white bathroom looks chic and would be great for any sim who wants to feel like a fashionista.
42. Rainbow Wall
This CAS background by Nyx is perfect for sims who want to add a little bit of color to their game. The rainbow wall is bright and cheerful, and would be great for any sim who wants to add a pop of color to their CAS.
43. Galaxy Wall
This CAS background by Nyx is perfect for sims who want to add a little bit of mystery to their game. The galaxy wall is dark and mysterious, and would be great for any sim who wants to add a touch of the unknown to their CAS.
44. Blue Floral Wall
This CAS background by Nyx is perfect for sims who want to add a touch of nature to their game. The blue floral wall is calming and would be great for any sim who wants to feel closer to nature.
Final Thoughts
With any of these mods, you can easily change the CAS background to suit your sim’s personality or the mood you’re trying to create for your game. So if you’re ever feeling bored with the default CAS background, be sure to try out one of these Sims 4 CAS backgrounds!
