
The Catrina CAS background is a bold and dramatic override that replaces the default blue Create-a-Sim screen with a rich interior setting. It features deep red tones, elegant décor, and a stylish room atmosphere, which are perfect for players who enjoy darker romantic aesthetics. The room is fully designed in 3D, complete with mirrors, windows, and detailed objects, which means it can look especially stunning with GShade presets and shadow effects enabled. This Sims 4 Valentine’s cas background is compatible with the base game. RELATED POST: 66+ Irresistible Sims 4 Goth CC To Unleash Your Dark Side (2026 Update)
Follow these steps to install Catrina CAS Background 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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Published
February 7, 2026
Source
MustHaveMods.com
Last Updated
March 18, 2026