🆕 NEW UPDATE: AUTOMATIC INSTALLER

When I posted the manual process last year, I didn't expect it to get as much attention as it did. Because of that, I decided to give it some extra care and turned the previous manual steps into an automated process for macOS players.

Note: As much as I tried to predict every possible outcome, players have proven to me more than once that I can't foresee everything. Please keep in mind that just like before, you are doing this at your own risk, and I am not responsible if anything breaks.

The automatic installer comes in the form of a .command file (inside the zip you can download from this post) that you need to double-click to run.

🚨 IMPORTANT:

Because this script modifies files inside your game, macOS will block it on the very first launch with a malware warning. You will only need to authorize it once!

To open the installer:

Unzip the file and double-click SimMattically_SunblindMod_Installer.command.

When the security warning pops up, click Done to dismiss it.

Open your Mac's System Settings and go to Privacy & Security.

Scroll down to the Security section near the bottom. You will see a note about the installer. Click Open Anyway (also again in the new pop-up, ugh).

Enter your Mac password when prompted, then click Open on the final confirmation box (or use TouchID).

The installer opens inside the Terminal, but I formatted the text to make it user-friendly. I also ensured that any questions or prompts pop up in native macOS windows, so you won't have to type anything directly into the terminal.

The installer will ask for the following:

If the downloaded Sunblind zip file is located directly in your Downloads folder.

If yes, whether you want to proceed with the installation.

If you proceed, it will ask if you want to create a backup of the original world files (and it will display the size of that backup).

If the mod is already installed and a backup exists, it will instead ask if you want to uninstall the mod and restore your backup.

Below, you can watch a GIF showing exactly how the process works:

A little technical explanation why I made this:

As a Mac user/player, I always dread installing mods that require merging (copying/pasting) folders into other folders because macOS lacks a very useful Windows feature – the ability to replace files in the destination.

Technically, macOS does have something similar, but it works completely differently from Windows. Instead of copying and replacing overlapping files, it will swap the contents of the existing folder with the one you’re trying to copy. Since most game mods only include parts of the game, this basically deletes all the other files not included in the mod (lol).

If you don't trust the automated installer and giving it permissions to modify the files on your computer, you can use the manual process described below!

OLD VERSION: MANUAL PROCESS

⚠️ BEFORE YOU PROCEED ⚠️

THIS GUIDE IS ONLY FOR PEOPLE WHO HAVE READING COMPREHENSION AND A BASIC UNDERSTANDING OF HOW COMPUTERS WORK. THIS METHOD IS EXTREMELY SIMPLE AND WILL WORK, BUT ONLY IF YOU FOLLOW THE INSTRUCTIONS CAREFULLY AND WITH UNDERSTANDING.

IF YOUR GAME BREAKS, YOUR COMPUTER EXPLODES, OR YOUR DOG DIES, THIS IS NOT MY FAULT. I WILL NOT BE HELPING YOU FIX ANYTHING. YOU ARE FULLY RESPONSIBLE FOR EVERYTHING YOU DO ON YOUR COMPUTER.

PROCEED ONLY IF YOU UNDERSTAND THIS.

Step 1.

Download the Sunblind mod and unzip the file to get the “sunblind” folder. Keep it nearby, we’re obviously going to need it soon.

Side note: This method moves the entire mod content, no matter which packs you actually own. If you want to save some drive space, you can open the sunblind/Delta folder now and delete the folders for any packs you don’t have.

Step 2.

Now in Finder, preferably in a new window or tab for convenience, go to Applications/EA Games/ (or wherever The Sims 4 is installed on your Mac) and right-click on The Sims 4.app, then choose Show Package Contents.

The Sims 4.app will open like a regular folder, and you will see a single Contents folder.

Keep it nearby, we will need it soon.

Step 3.

Now open Terminal.

If the idea of using it scares you, or you don’t even know what it is, ABORT THE MISSION. You probably shouldn’t be doing this anyway.

The concept is simple: we’ll use this command to automatically merge folders:

rsync -rDv --progress /path/to/sunblind/ /path/to/contents/

Here’s the GIF showing the full process first:

First, copy the command itself and paste it into Terminal (don’t forget the space at the end):

rsync -rDv --progress

Next, drag and drop the "sunblind" folder into the Terminal window. This will automatically fill in its path. Your command should now look like this:

rsync -rDv --progress /path/to/sunblind

This part is critical: remove the space after sunblind and manually type a forward slash “/” at the end of the path so it looks like this:

rsync -rDv --progress /path/to/sunblind/

Now, add a space after the slash and drag the Contents folder into Terminal. It should fill in that path automatically, like this:

rsync -rDv --progress /path/to/sunblind/ /path/to/contents

Again, remove the space after Contents and add a “/” at the end. The final path should look like this:

rsync -rDv --progress /path/to/sunblind/ /path/to/contents/

To give a real example, my final command looks like this:

rsync -rDv --progress /Users/mateusz/Downloads/sunblind/ /Applications/EA\ Games/The\ Sims\ 4.app/Contents/

Step 4.

Press the Return/Enter key and pray you read everything carefully and did it all correctly.

Congratulations, Terminal just installed the Sunblind mod for you!