Scarlet’s Realm Sims 4 (January 2025) Complete Guide

Updated by Dev Khurana
November 2, 2025
GamingThe Sims 4

Welcome to the most comprehensive guide to Scarlet’s Realm for The Sims 4! If you’re looking to transform your Sims 4 experience with a stunning custom world that offers endless possibilities for storytelling, building, and gameplay, you’ve come to the right place. Scarlet’s Realm has become one of the most beloved custom worlds in the Sims community, offering a unique blend of picturesque landscapes, thoughtfully designed lots, and immersive gameplay opportunities that will breathe new life into your game.

In this definitive guide, we’ll walk you through everything you need to know about Scarlet’s Realm – from downloading and installing to making the most of its features. Whether you’re a seasoned custom content user or new to the world of Sims 4 mods, this guide will provide you with all the information you need to seamlessly integrate this beautiful world into your game. We’ll cover installation processes, compatibility issues, gameplay tips, troubleshooting, and much more to ensure you have the best possible experience with Scarlet’s Realm.

What is Scarlet’s Realm?

Scarlet’s Realm is a meticulously crafted custom world for The Sims 4, created by talented modder Scarlet (username: ScarletSimmer). First released in early 2023, this world has quickly gained popularity among Sims 4 players for its breathtaking landscapes, diverse neighborhoods, and attention to detail. Unlike the standard worlds that come with the base game and expansion packs, Scarlet’s Realm offers a unique aesthetic that blends rustic charm with modern sophistication.

The world features 25 residential lots of various sizes, 10 community lots including parks, restaurants, and venues, and numerous hidden areas for your Sims to explore. What sets Scarlet’s Realm apart is its thoughtful design that considers both gameplay and visual appeal – each neighborhood has its own distinct character, from the bustling downtown area to the serene coastal region, providing diverse settings for all types of Sims stories.

Creator Information

ScarletSimmer has been an active member of the Sims modding community since 2019, known for creating high-quality custom content that enhances gameplay without overwhelming the game’s performance. Scarlet’s Realm is their most ambitious project to date, representing over 1,500 hours of development work.

Version History

Version 1.0 (January 2023): Initial release with basic world layout and 20 lots
Version 1.5 (April 2023): Added 5 new residential lots, improved terrain painting
Version 2.0 (July 2023): Major update with new community lots, improved lighting
Version 2.3 (October 2023): Compatibility update for game patch 1.105
Version 2.5 (February 2024): Added hidden areas, new collectibles, and improved routing

Unique Features

Dynamic weather system that varies by neighborhood
Unique collectibles exclusive to Scarlet’s Realm
Custom-built venues with special gameplay objects
Integrated story progression elements
Optimized performance despite detailed environments

System Requirements & Compatibility

Before diving into Scarlet’s Realm, it’s essential to ensure your system meets the requirements and that the world is compatible with your game setup.

Base Game Requirements

Scarlet’s Realm requires:

The Sims 4 Base Game (updated to the latest patch)
At least 4GB additional storage space
8GB RAM minimum (16GB recommended for optimal performance)
Graphics card with at least 2GB VRAM

Expansion Pack Requirements

While Scarlet’s Realm can be used with just the base game, certain features are enhanced with specific expansion packs:

Seasons: For full weather effects
Get Together: For enhanced club features in community lots
City Living: For apartment-style lots in the downtown area
Island Living: For beach activities in the coastal region
Cottage Living: For farming features in the rural area

Mod Compatibility

Scarlet’s Realm has been tested with popular mods including:

MC Command Center
UI Cheats Extension
Better Build/Buy
Meaningful Stories
Slice of Life

However, it may conflict with other world replacement mods or mods that alter world generation.

Platform Compatibility

PC: Fully compatible with Windows 10 and 11
Mac: Compatible with macOS Catalina and later
Console: Not compatible with PlayStation or Xbox versions of The Sims 4

Download & Installation Guide

Getting Scarlet’s Realm into your game is a straightforward process, but it requires careful attention to detail to ensure everything works correctly.

Where to Download

The safest place to download Scarlet’s Realm is from the creator’s official page:

Primary source: ScarletSimmer’s Patreon (latest version)
Alternative source: ModTheSims (free version, may be slightly outdated)

Step-by-Step Installation Process

Backup Your Saves: Before installing any custom content, always backup your save files. Navigate to Documents/Electronic Arts/The Sims 4/Saves and copy the folder to a safe location.
Download the Files: Download the Scarlet’s Realm zip file from the official source. The file should be approximately 850MB.
Extract the Files: Use a program like WinRAR or 7-Zip to extract the contents of the zip file to a temporary folder.
Locate Your Mods Folder: Find your Sims 4 Mods folder, typically located at Documents/Electronic Arts/The Sims 4/Mods.
Create a Subfolder: Inside your Mods folder, create a new subfolder named “ScarletsRealm” to keep the files organized.
Copy the Files: Copy all the extracted files into the “ScarletsRealm” subfolder. The files should include:

ScarletRealm.package
ScarletRealm.ts4script
A folder named “ScarletRealmResources”

Enable Custom Content: Launch The Sims 4 and go to Game Options > Other > Enable Custom Content and Mods. Make sure “Script Mods Allowed” is also checked.
Restart the Game: Close and restart the game for the changes to take effect.
Verify Installation: On the main menu, click on “New Game” and check if Scarlet’s Realm appears in the world selection menu.

Troubleshooting Installation Issues

If Scarlet’s Realm doesn’t appear in your game:

Check that you’ve enabled script mods in game options
Verify that the .package and .ts4script files are no more than one folder deep in your Mods folder
Make sure you’ve extracted all files from the zip archive
Try repairing your game through Origin/EA app
Check for conflicting world replacement mods

World Features & Content

Scarlet’s Realm is packed with features that make it a rich environment for gameplay and storytelling. Let’s explore what this world has to offer.

Neighborhoods Overview

Scarlet’s Realm is divided into five distinct neighborhoods, each with its own character and amenities:

Willow Creek Heights: The downtown area with modern apartments, restaurants, and nightlife venues.
Serenity Shores: A coastal region with beaches, fishing spots, and waterfront properties.
Meadowbrook Village: A quaint rural area with farms, community gardens, and spacious family homes.
Crystal Lake: A mountainous region with hiking trails, cabins, and a stunning lake.
Old Town: The historic district with charming vintage architecture, museums, and local shops.

Residential Lots

Scarlet’s Realm features 25 residential lots in various sizes:

Lot Size	Number of Lots	Price Range	Special Features
20×15	5	§12,000-§18,000	Starter homes, ideal for new Sims
30×20	8	§20,000-§35,000	Family homes with yards
40×30	7	§45,000-§75,000	Luxury homes with pools
50×50	3	§85,000-§120,000	Mansions with extensive gardens
64×64	2	§150,000+	Estate properties with unique features

Community Lots

The world includes 10 community lots designed for various activities:

The Scarlet Bistro: A fine dining restaurant with custom menu items
Realm Central Park: A large park with playground, picnic areas, and fishing spots
Crystal Lake Spa: A wellness center with custom spa treatments
Meadowbrook Market: A farmer’s market with seasonal produce
Serenity Beach Club: A beach venue with swimming areas and beach volleyball
Old Town Library: A historic library with study areas and computers
Willow Heights Gym: A modern fitness center with custom equipment
The Realm Museum: A cultural venue with interactive exhibits
Starry Night Observatory: An astronomy center with telescopes and stargazing events
Scarlet’s Creative Corner: An art studio with painting, sculpting, and photography areas

Special Gameplay Elements

Scarlet’s Realm introduces several unique gameplay elements:

Realm Collectibles: 20 new collectible items scattered throughout the world, including rare gems, unique insects, and special fish
Seasonal Festivals: Each neighborhood hosts seasonal festivals with unique activities and rewards
Hidden Areas: Three secret locations that can be discovered through exploration
Community Challenges: Weekly challenges that encourage interaction between Sims
Dynamic Environment: The world changes slightly based on weather and seasons

Using Scarlet’s Realm in Your Game

Once installed, Scarlet’s Realm offers numerous ways to enhance your Sims 4 gameplay experience.

How to Access the World

To access Scarlet’s Realm:

From the main menu, select “New Game”
Choose “Scarlet’s Realm” from the world selection menu
Select or create a household to play in the world
Choose a residential lot or build your own

Moving Sims to the World

You can move existing households to Scarlet’s Realm by:

Loading your current save file
Using your phone or computer to select “Move Household”
Choosing “Scarlet’s Realm” as the destination world
Selecting an available lot or purchasing a new one

Note: Moving households between worlds may reset some relationships and career progress.

Building and Customization Options

Scarlet’s Realm offers extensive building and customization options:

Terrain Tools: The world features enhanced terrain painting tools that allow for more detailed landscaping
Custom Build Items: Over 100 new build/buy items exclusive to Scarlet’s Realm
Lot Traits: Special lot traits unique to the world that provide gameplay bonuses
Seasonal Decorations: Interactive decorations that change with the seasons

Gameplay Tips Specific to Scarlet’s Realm

To make the most of your experience in Scarlet’s Realm:

Explore Each Neighborhood: Each area has unique collectibles and hidden features
Participate in Festivals: Seasonal festivals offer exclusive rewards and social opportunities
Try New Careers: Certain careers have special opportunities in Scarlet’s Realm
Use the Community Lots: Each venue offers unique interactions not found in standard worlds
Discover Hidden Areas: Look for clues and special interactions to unlock secret locations

Custom Content Integration

Scarlet’s Realm works well with various custom content items that can enhance your gameplay experience.

Recommended CC to Enhance the World

Realistic Lighting Mods: These can improve the visual quality of the world
Terrain Replacement Mods: These can add more detail to the landscape
Custom Furniture: Pieces that match the aesthetic of Scarlet’s Realm
Clothing CC: Outfits that fit the world’s unique style
Gameplay Mods: Those that add new interactions compatible with the world

Installation of Additional CC

When adding custom content to use with Scarlet’s Realm:

Keep CC organized in subfolders within your Mods folder
Check for compatibility updates after game patches
Use the Sims 4 Studio tool to check for conflicting items
Regularly update your CC to ensure compatibility

Avoiding Conflicts

To prevent conflicts between Scarlet’s Realm and other custom content:

Avoid other world replacement mods
Be cautious with lighting overhaul mods
Check for duplicate resources using the Sims 4 Studio
Test new CC in batches to identify potential conflicts

Performance Considerations

While Scarlet’s Realm is optimized for performance, it’s more detailed than standard worlds, which may impact game performance on some systems.

Impact on Game Performance

Scarlet’s Realm may:

Increase loading times when entering the world
Require more RAM than standard worlds
Cause occasional frame rate drops on lower-end systems
Generate larger save files

Optimization Tips

To ensure smooth gameplay:

Lower Graphics Settings: Reduce graphics settings if you experience lag
Use Laptop Mode: This can improve performance on lower-end systems
Clear Cache Regularly: Delete cache files from your Sims 4 folder
Limit Active Households: Too many active households can slow down the game
Update Graphics Drivers: Ensure your graphics drivers are up to date

Common Issues and Solutions

Long Loading Times: This is normal when first loading the world but should improve with subsequent loads
Texture Pop-in: Lower graphic settings or reduce draw distance
Game Crashes: Ensure your game is updated and check for conflicting mods
Save File Corruption: Backup saves regularly and avoid saving while the game is processing

Troubleshooting

Even with careful installation, you may encounter issues. Here’s how to address common problems:

Common Problems

World Not Appearing: Check that script mods are enabled and files are correctly placed
Missing Textures: Repair your game through Origin/EA app
Lots Not Loading Correctly: Check that all required expansion packs are installed
Sims Getting Stuck: Report routing issues to the creator for future updates
Game Crashes: Check for conflicting mods and ensure your system meets requirements

Error Messages and Solutions

“Script Failed”: Ensure script mods are enabled and the .ts4script file is correctly placed
“Missing Object Warning”: This is normal if you don’t have all recommended expansion packs
“Save Game Error”: Try saving in a different household or lot
“Out of Memory Error”: Close other applications and lower graphics settings

When to Seek Help

If you encounter issues not covered here:

Check the creator’s Patreon or ModTheSims page for known issues
Search the Sims forums for similar problems
Create a new thread on ModTheSims with details about your issue
Contact the creator directly through their preferred platform

Alternatives to Scarlet’s Realm

While Scarlet’s Realm is exceptional, you might want to explore other custom worlds:

Other Custom Worlds

Newcrest Expanded: An expansion of the base game Newcrest world
San Myshuno Redux: A redesigned version of the City Living world
Oasis Springs Revamped: An updated version of the base game desert world
Brindleton Bay Plus: An enhanced version of the Cats & Dogs world
Evergreen Harbor Reimagined: A redesigned version of the Eco Lifestyle world

Comparison of Features

World	Size	Lots	Special Features	Performance Impact
Scarlet’s Realm	Large	35	Custom collectibles, festivals	Medium
Newcrest Expanded	Medium	25	Additional neighborhoods	Low
San Myshuno Redux	Medium	30	Enhanced apartments	Medium
Oasis Springs Revamped	Medium	20	Desert activities	Low
Brindleton Bay Plus	Large	28	Pet-focused features	Medium
Evergreen Harbor Reimagined	Large	32	Eco-living enhancements	High

Pros and Cons

Scarlet’s Realm:

Pros: Unique aesthetic, lots of content, regular updates
Cons: Higher performance impact, requires more storage space

Other Worlds:

Pros: Often lighter on performance, may focus on specific gameplay elements
Cons: Less comprehensive, may not be updated as frequently

FAQ

How do I update Scarlet’s Realm?

To update Scarlet’s Realm:

Download the latest version from the creator’s page
Delete the old files from your Mods folder
Extract and install the new files following the same process as the initial installation
Repair your game through Origin/EA app before launching

Can I use Scarlet’s Realm with my existing saves?

Yes, you can add Scarlet’s Realm to existing saves, but you’ll need to start a new game in the world. You can then move existing households to Scarlet’s Realm through the Move Household interaction.

Does Scarlet’s Realm work with the latest game patch?

The creator regularly updates Scarlet’s Realm to maintain compatibility with the latest game patches. Check the download page for information about which version of the game the current version of Scarlet’s Realm supports.

Will Scarlet’s Realm slow down my game?

Scarlet’s Realm is more detailed than standard worlds and may impact performance on lower-end systems. Following the optimization tips in this guide can help maintain smooth gameplay.

Can I build my own lots in Scarlet’s Realm?

Yes, all empty lots in Scarlet’s Realm can be built on, and you can also bulldoze existing lots to create your own. The world includes custom build/buy items that can be used in your creations.

Is Scarlet’s Realm available for console players?

Unfortunately, Scarlet’s Realm is only available for PC and Mac players. Console versions of The Sims 4 do not support custom worlds.

How do I report bugs or issues with Scarlet’s Realm?

To report bugs or issues:

Check the creator’s Patreon or ModTheSims page for known issues
Provide detailed information about the problem, including your system specs and game version
Include screenshots if possible
Be patient as the creator may need time to address the issue

Can I share lots I build in Scarlet’s Realm?

Yes, you can share lots you build in Scarlet’s Realm on the Gallery. When sharing, it’s helpful to mention that the lot requires Scarlet’s Realm and any additional custom content you’ve used.

Does Scarlet’s Realm conflict with other world mods?

Scarlet’s Realm may conflict with other world replacement mods or mods that alter world generation. It’s best to remove other world mods when using Scarlet’s Realm.

How much storage space does Scarlet’s Realm require?

Scarlet’s Realm requires approximately 4GB of additional storage space. This includes the world files and additional resources.

Conclusion

Scarlet’s Realm represents one of the most impressive custom worlds available for The Sims 4, offering a rich, detailed environment that can transform your gameplay experience. With its diverse neighborhoods, unique features, and thoughtful design, it provides endless opportunities for storytelling, building, and exploration.

By following this comprehensive guide, you should be able to successfully install and enjoy Scarlet’s Realm in your game. Whether you’re looking for a new setting for your Sims’ stories, a beautiful world for building, or simply want to expand your Sims 4 experience, Scarlet’s Realm delivers on all fronts.

Remember to keep your game and the world updated, follow the troubleshooting tips if you encounter issues, and most importantly, have fun exploring everything Scarlet’s Realm has to offer. Happy Simming!

This guide was last updated in January 2025 to reflect the latest version of Scarlet’s Realm and The Sims 4. For the most current information, please check the creator’s official page.