Also in:Witch CC

Valentine’s Day CAS background brings a warm and romantic interior setting into CAS. It’s the perfect backdrop for Valentine edits, styling, and seasonal screenshots. The room features rich pink tones, heart-themed décor, and a cozy bedroom atmosphere that instantly gives your CAS screen a festive Valentine makeover. I recommend using this CAS background with glamorous outfits, date-night looks, or any romantic storytelling. Note that you can only have one CAS background installed at a time, so it’s best to keep your Mods folder organized when switching between different seasonal options.
Follow these steps to install CAS Background: Valentine’s Day 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.
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Created by
Katarzyna Wolska
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Published
February 7, 2026
Source
MustHaveMods.com
Last Updated
August 11, 2026