23+ Best Sims 4 CAS Mirror Background for Stunning Character Creations

Are you looking for a fresh and new way to create your characters in CAS? If so, what you need is the perfect CAS background and what better option than a mirrored background?

Sims 4 CAS Mirror Backgrounds lets you see your Sim both front and back at the same time. Instead of the plain default screen, these custom setups place your Sims in themed rooms, each complete with a working mirror reflection. This adds a whole new layer of depth and style to your surroundings.

Below, I’ve compiled a list of the best Sims 4 CAS mirror backgrounds for your gameplay. Scroll through to not only get decorative backgrounds but also immersive, stylish, and personalized spaces designed to match your gameplay vibe.

Note: You can only use one CAS background in your gameplay. So before downloading any from this list, delete any current versions from your mods folder. 

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Grunge Default CAS Background

Download: Grunge Default CAS Background

Kicking off this list is the Grunge Default CAS Background set, an industrial-styled backdrop that gives off a gritty scene. This background has exposed brick walls, metal doors, and a cracked standing mirror that adds instant edge to your CAS screen. The background also features pipes, gears, and graffiti details, perfectly capturing the underground, rebellious energy. This background is a great choice for players who love alternative, punk, or werewolf-inspired gameplay. To use it, place only one background in the mods folder.

Serenity Suite CAS Background

Download: Serenity Suite CAS Background

If you’re looking for a calming and stylish CAS setup, the Serenity Suite CAS Background CC is the perfect place to start. This background transforms CAS into a modern, cozy room complete with sleek furniture, warm wood tones, and lush indoor plants. It also comes with a large circular window that brings in natural light.

Note that this pack has a beautiful rain effect that appears outside the window to add a touch of realism to your gameplay. I love how the full-length mirror at the center gives the space a suite feel. This background balances elegance and comfort, making it ideal for players who want CAS to feel immersive and serene.

10 Default 3D Backgrounds For CAS

Download: 10 Default 3D Backgrounds For CAS

The 10 Default 3D Backgrounds for CAS is a multi-styled set containing numerous themed mirrored CAS backgrounds. These are:

• Beachy Daze – A breezy, sunlit room with wooden walls, seaside decor, and a view of the ocean, perfect for a relaxed coastal vibe.
• Business Casual – An office-style setup with large windows, indoor plants, and a modern lounge, ideal for professional-themed Sims.
• Eclectic Neon – A colorful room with neon lighting, patterned rugs, and funky furniture that creates a lively party atmosphere.
• Indoor Garden – A nature-inspired space filled with plants, soft green walls, and sunlight pouring through arched windows.
• Industrial Chic – A stylish loft with exposed brick walls with graffiti, large factory windows, and a statement mirror, all blending rugged and modern designs.
• Medieval Chamber – A regal backdrop with stone walls, rich red curtains, and candlelight, giving your CAS setup a castle-like, historic feel.
• Modern Minimalism – A bright room with clean white furniture, glass decor, and contemporary lines for a sleek aesthetic.
• Vampire’s Study – A moody, gothic room with flickering candles, dark wood furniture, and a large mirror framed in ornate detail.
• Witch’s Woods – A mystical outdoor-inspired background with stone walls, glowing candles, and greenery that looks like a magical garden.
• Witchy Lofi – A cozy, colorful space with neon signs, plush seating, and magical decor, blending modern lofi aesthetics with witchy vibes.

Note that some background textures have transparency issues that can mess up Sim hairstyles. This pack gives you a little bit of everything, so you can always switch up your background, depending on your vibe. Remember, you can only use one background at a time.

Y2K CAS Background

Download: Y2K CAS Background

The Y2K CAS Background CC is a colorful throwback to early 2000s bedroom aesthetics. It comes with a bold pink backdrop, funky patterned rug, and playful details like Hello Kitty decor. The background also has a cactus side table and a Powerpuff Girl plush to capture the fun and nostalgic vibe of the era.

I love the way the large wavy mirror adds the signature CAS reflection effect, tying the look together with style. This background is perfect for players who love Y2K fashion sense or want CAS to feel girly, playful, and with a retro-inspired theme. If you’re interested in more Y2K content, read our piece on Sims 4 Y2K CC Finds.

Witchy Lofi CAS Background Room

Download: Witchy Lofi CAS Background Room

The Witchy Lofi CAS Background Room set is a moody, magical setup perfect for players who love a mix of neon aesthetics and witchy vibes. The room is filled with glowing purple and pink tones, flickering candles, spell books, and arcane decor, giving CAS an enchanting atmosphere. It also comes with a large ornate mirror, gothic windows, moonlit skies, and mystical details.

What to know before downloading this Sims 4 CAS mirror background set:

• Download the package file and place it in your Mods folder (up to 5 folders deep).
• You can only have one CAS background in your game at a time.
• Reflections need to be set to low, medium, or high (but not OFF) in graphics settings for the mirror to function.
• Works with both DX11 and DX9.

Brooklyn CAS Background

Download: Brooklyn CAS Background

If you’re looking for a chic and modern vibe in CAS, the Brooklyn CAS Background Dark CC has got your back. This background places your Sim inside a sleek walk-in closet. The room comes complete with floor-to-ceiling windows, neatly hung coats, and stylish racks of clothing. The tall mirror adds realism while giving your Sim a full boutique-like experience.

I love how the darker tones create a polished, urban atmosphere, perfect for Sims with a fashionable or high-end lifestyle. Please carefully read the download instructions before adding this to your mods folder.

Elle’s Attic CAS Background

Download: Elle’s Attic CAS Background

If you’re looking for a warm and creative atmosphere in CAS, the Elle’s Attic CAS Background set delivers just that. This cozy room setup features a vintage-inspired wallpaper, a leaning mirror, a coat stand, stacked books, and charming details like a guitar. It also features large windows that open up to a stunning sunset view. This fills the room with golden light to make the space feel alive and inviting.

The background strikes a balance between homely comfort and artistic flair, making it perfect for Sims with a free-spirited or bohemian lifestyle. Click on the link attached for more information on this background.

Cherry Bloom CAS Background

Download: Cherry Bloom CAS Background

The Cherry Bloom CAS Background set is a sweet and vibrant setup that brings a burst of charm to your Create-a-Sim screen. It features a cherry-patterned wallpaper, pastel pink tones, and playful wall art to create a bright and cheerful atmosphere. The Sims 4 CAS background also has a large standing mirror at the center to reflect your characters.

I love how the polished wood flooring and cozy rug tie the space together. Before installing this background, take note of the following:

• Place the package file in your Mods folder.
• Only one CAS background can be used in your game at a time.

Coquette Bedroom CAS Background

Download: Coquette Bedroom CAS Background

The Coquette Bedroom CAS Background cc is a dreamy, feminine setup that transforms CAS into a chic pastel retreat. It comes with a pink diamond-patterned wallpaper, dainty string lights, and soft furnishings, which perfectly capture the coquette aesthetic. The room contains a plush, round rug, a vintage dresser topped with perfume bottles, and an elegant wardrobe. It also has a tall mirror at the center.

The addition of small details like flowers, framed decor, and cozy seating adds to the coziness and chicness of the room. Please avoid the lowest option on Settings > Graphics > Reflections, as it will cause the mirror to appear empty.

Electicism Part 2 CAS Background

Download: Electicism Part 2 CAS Background

The Eclecticism Part 2 CAS Background set is a bold and maximalist set designed to make CAS feel like a curated art space. These Sims 4 cas mirror background backdrops are filled with colorful wall art, patterned rugs, plush sofas, and chic room dividers. The items give every Sim a stylish environment to shine in.

This pack comes in multiple swatches, giving you multiple moods to choose from. There are also day and night variants to match your preferred atmosphere. Just change the background to match the style you’re going for that day. Note that the standing mirror remains central in all the swatches, keeping CAS functional by reflecting the vibrant room design around the Sim.

Runway London CAS Background

Download: Runway London CAS Background

The Runaway London CAS Room CC by ellcrze gives your CAS screen a refined, classic look with plenty of character. This background contains tall paneled windows, warm-toned wooden doors, and patterned rugs that set a cozy and sophisticated mood. It also comes with large indoor plants that add greenery and freshness, and a guitar leaning against the mirror for a touch of personality.

You’ll find this background in three versions, increasing your styling options in CAS. I highly recommend this Sims 4 CAS mirror background to players who want to feel like they’re in a chic London flat.

Beachy Daze CAS Background

Download: Beachy Daze CAS Background

The Beachy Daze CAS Background Room set brings summer relaxation straight into your Create-a-Sim screen. It features wide open windows overlooking sandy shores and swaying palm trees that capture the breezy, carefree vibe of a beach getaway. The decor includes natural wood furniture, woven textures, leafy green plants, and a cozy mirror setup, making the background feel both fresh and inviting.

I recommend this set to Simmers who want a CAS with a laid-back or vacation-ready style. You can even find beach-ready pieces in our Sims 4 Coastal CC article to use with the background. Remember to keep reflections low, medium, or high (not OFF) in graphics settings for the mirror reflection to work.

Antonio 3D CAS Background

Download: Antonio 3D CAS Background

The Antonio 3D CAS Background replaces the plain default screen with a modern, earthy-toned room that feels grounded and realistic. It has a sleek standing mirror, neatly organized clothing racks, and subtle decor that creates the perfect walk-in closet vibe.

The large windows open to a San Myshuno cityscape view for a more realistic touch. This background is designed in a clean, contemporary style. Click on the link attached for more information on this Sims 4 cas mirror background.

Bonsai CAS Background

Download: Bonsai CAS Background

If you’re looking for a serene and nature-inspired setup, the Bonsai CAS Background is a beautiful option. This background captures a calm, minimalist atmosphere with warm wooden tones, sliding panel windows, and lush greenery. A bonsai tree sits in the corner, adding to the tranquil design and reinforcing the theme of natural balance.

I love how the tall mirror keeps your Sim centered while reflecting the cozy interior. This makes CAS feel more immersive. This Sims 4 CAS mirror background is perfect for players who enjoy Zen-inspired or Japanese-style builds.

Boho CAS Background with Mirror

Download: Boho CAS Background with Mirror

If you’re looking for a relaxed and stylish vibe in CAS, the Boho CAS Background with Mirror is the perfect fit. This setup transforms the default CAS into a cozy bohemian-inspired space, complete with woven rugs, hanging greenery, and light wooden wardrobes filled with neatly arranged clothing. It also has a tall mirror that keeps your Sim at the center of attention.

I recommend getting this mirror if you enjoy casual, boho-chic aesthetics and want an additional touch of nature. For more Boho-inspired decor, head over to our piece on Sims 4 Boho Furniture CC.

Christmas CAS Room 3D with Mirror

Download: Christmas CAS Room 3D with Mirror

The Christmas CAS Room 3D with Mirror brings holiday warmth and festive charm straight into Create-a-Sim. This fully 3D setup comes with a decorated tree, a glowing fireplace with stockings, wrapped gifts, and a cozy armchair to complete the seasonal vibe. The full-length mirror adds depth and makes outfit previews more immersive.

I love how the soft lighting enhances the room’s festive glow. It’s the perfect background to create magical holiday Sims, capture seasonal looks, or simply enjoy a more atmospheric CAS experience all winter long.

Pure Love CAS Background

Download: Pure Love CAS Background

The Pure Love CAS Background transforms your surroundings into a bright, modern room that feels airy and realistic. It comes with a full-length vanity mirror, open closet, lush plants, and cozy seating to give Sims the perfect environment for styling. I love how the natural light pours through wide windows, while the wooden floors and minimal decor keep everything sleek and aesthetic.

Note that this Sims 4 CAS mirror background override uses custom lighting, so the creator recommends removing all CAS lighting mods to avoid any conflicts. The set also comes in a high poly count, so users of lower-end PCs should be careful when getting it.

Bohemian Minimalist 3D CAS Background

Download: Bohemian Minimalist 3D CAS Background

The Bohemian Minimalist 3D CAS Background brings a cozy, neutral-toned setup to your backdrop screen. This set comes styled with warm wood flooring, woven baskets, lush greenery, and a statement standing mirror. The items create the perfect modern-boho vibe.

Note that this set is designed in 3D with a working mirror, making your Sim’s reflection realistic. This background works with the base game, offering a functional and aesthetic upgrade to your CAS experience. Click on the link attached for more information on this set.

ACGN CAS Background + Cinnamoroll Mirror

Download: ACGN CAS Background + Cinnamoroll Mirror

The ACGN CAS Background with Cinnamoroll Mirror is a colorful and cozy anime-inspired setup that transforms your Create-a-Sim screen into a bedroom full of style and vibrant energy. The background is decorated with manga shelves, anime posters, and plush seating, giving it a true otaku room vibe.

The standout feature is the oversized Cinnamoroll-themed mirror, which lets you see your Sim’s reflection while adding a cute and playful touch. This background is perfect for players who want their CAS experience to reflect a love for anime, gaming, and kawaii aesthetics. For more anime-inspired clutter, check out our article on Sims 4 Anime CC.

My Room CAS Background

Download: My Room CAS Background

If you’re looking for a cute and cozy CAS background that feels like stepping into a bedroom, the My Room CAS Background is a perfect pick. This setup features soft pink tones of charming decor like plushies, ribbons, and a pastel desk area, creating an inviting space for your Sims.

The highlight of the setup is the full-length mirror that reflects your Sim, adding a realistic 3D touch. Remember to keep your graphics reflections above the lowest setting, or the mirror will appear empty. This background is ideal for players who want a sweet, personalized atmosphere in CAS.

Sanrio CAS Background

Download: Sanrio CAS Background

If you’re looking for a Sims 4 CAS mirror background that bursts with color and playful charm, this set is a must-have. The Sanrio CAS Background setup transforms your CAS surroundings into a kawaii paradise filled with Sanrio decor. The objects range from pink walls and plushies to themed posters and rugs.

I love how the mirror reflects your Sim and makes the space feel more immersive. This background is perfect for fans of Hello Kitty, My Melody, and the entire Sanrio crew.

Livin’ CAS Background

Download: Livin’ CAS Background

The Livin’ CAS Background is a realistic home-inspired setting that adds a warm, cozy vibe to your Create-a-Sim screen. It features soft neutral tones, a potted plant, and a large decorative mirror to reflect your Sim. The set also has a blurred bookshelf and clean decor that creates a lived-in and minimal aesthetic.

I recommend this Sims 4 CAS mirror background set to Simmers who want their CAS to feel like a natural extension of their virtual homes. Click on the link attached for more information on this set.

Vampire’s Study CAS Background Room

Download: Vampire’s Study CAS Background Room

The Vampire’s Study CAS Background Room sets the perfect mood for gothic and supernatural storytelling in your gameplay. This Sims 4 CAS mirror background is designed like a dark study and contains an ornate gothic mirror, flickering candles, occult decor, and a roaring fireplace. It also comes with a moonlit window and scattered mystical items that give it a hauntingly elegant vibe.

You can use this background to create vampire Sims, witches, or any occult-themed characters. The background is base-game compatible, and you need to set reflections to low.

Conclusion

That’s the end of the road, Simmers. I hope you find your ideal Sims 4 CAS mirror background on this list. Feel free to share among friends and fellow Simmers.

Don’t forget to leave a comment or suggestion in the box below.

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