
The Cozy Christmas CAS Backgrounds pack is an extensive collection of festive-themed backdrops for your holiday gameplay. You’ll find three different room layouts, each available in both afternoon and night lighting, so you can match your CAS ambience to the mood you prefer. Each version offers its own blend of seasonal décor, from glowing fireplaces and framed winter art to plush seating and subtle Christmas greenery. The rooms are detailed but thoughtfully arranged, making them ideal for lookbooks, winter outfits, and storytelling screenshots. I’ve used some of the backdrops in my gameplay, and they translate beautifully.
Follow these steps to install Cozy Christmas CAS Backgrounds on your Sims 4 game:
Download the mod file from the link above. Sims 4 mods typically come as .package or .ts4script files.
Open your Sims 4 Mods folder. The default location is: Documents/Electronic Arts/The Sims 4/Mods
Place the downloaded file directly into the Mods folder. You can organize mods into subfolders up to one level deep.
Launch The Sims 4 and go to Game Options > Other. Make sure "Enable Custom Content and Mods" is checked.
Restart the game if it was already running. The mod should now appear in your game.
Important: Always back up your save files before installing new mods. After Sims 4 updates, mods may need to be re-downloaded or updated by the creator.
Platform
The Sims 4 (PC/Mac)
Pro tip: If a mod stops working after a game update, check the creator's page for an updated version. Broken mods can cause the game to behave unexpectedly.
Created by
Cozy Christmas 116001579
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Published
December 18, 2025
Source
MustHaveMods.com
Last Updated
June 11, 2026