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About This Mod
If you’re a fan of celestial and mystical themes, get this CAS Background pack. It features swirling stars, nebulas, and colorful gradients ranging from blue to purple and pink. The background also contains silhouettes of the sun, moon, stars and other astronomical symbols. This background evokes spirituality and is perfect for Simmers looking for enchanting aesthetics for their create-a-Sim scenery.
How to Install
Follow these steps to install CAS Background on your Sims 4 game:
- 1
Download the mod file from the link above. Sims 4 mods typically come as .package or .ts4script files.
- 2
Open your Sims 4 Mods folder. The default location is: Documents/Electronic Arts/The Sims 4/Mods
- 3
Place the downloaded file directly into the Mods folder. You can organize mods into subfolders up to one level deep.
- 4
Launch The Sims 4 and go to Game Options > Other. Make sure "Enable Custom Content and Mods" is checked.
- 5
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.
Compatibility
Platform
The Sims 4 (PC/Mac)
Requirements
- •Custom Content and Mods must be enabled in Game Options > Other
- •Script mods (.ts4script files) require "Script Mods Allowed" to be enabled separately
- •After each Sims 4 game update, some mods may need to be updated by the creator
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.
Frequently Asked Questions
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CAS Background
Created by
Shiningangel87
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Additional Information
Published
December 16, 2025
Source
MustHaveMods.com
Last Updated
January 25, 2026