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The Sims 3 Mod Generator (OUTDATED)

by morgade Posted 8th Jul 2009 at 3:08 PM - Updated 27th Nov 2013 at 4:16 PM by Nysha
160 Comments / replies (Who?) - 5 Feedback Posts, 6 Thanks Posts


This tool has not been updated for newer patches. Mods generated with this program are usually not compatible with newer patches. Do not use this tool to make mods for upload here at MTS, please!

XML tuning mods are fairly easy to make even without this program, and you can make them with the updated versions of the game's XML files so that you can be sure they'll work correctly with your game and with other updated games. Please see the Create dropdown (Sims 3 > Modding Discussion) for info and tutorials on making XML Mods.

The Sims 3 Mod Generator by Marcelo Morgade

Updated to version 0.2.1
New features: Search function, mod project conflicts checking, external package conflicts checking, text area to show full long parametr descriptions
Java Version Issue: Actually, you need Java 1.6 to run this program.

This tool allows customizing THOUSANDS of game parameters and generates a package file to be used as a "mod". (No XML editing required)

It has the concept of "Mod projects". These "mod projects" groups multiple parameters that can be tuned and saved to a package file. (Take a look at the screenshot).

The Sims Mod Generator version 0.2
Use this tool at your own risk !

1. Unpack in any directory you want.
2. Run SimCustomizer.exe or SimCustomizer.bat
- You need Java 1.6 to run this tool. If you don't have it installed,
the exe will open a browser indicating how to download

The tool works with the 'Mod Project' concept. The project define a set of
customization that make a 'mod'.

You can select an item of interest at 'Available Plugins' list an click 'Add'
to add it to your project in the 'Current Mod Plugins'.
Select an item in the 'Current Mod Plugins' to view all customizable options
at the table in the right.
Select the customized values (WARNING: Setting with wrong values can mess your
You can File->Save Mod Project (as a .smod file) to open it later.
You can File->Export it as a package file that can be installed with tools like
'TS3 Install Helper Monkey'


version 0.2
- Text area to visualize long parameters descriptions

- Search function:
- Type one or more word to search into parameter description and plugin names
- Plugins listed in a search can be added to current project

- Check mod project conflicts
- Select one or more package files to check wich ones conflicts with you project

- Check conflicts between extern mods
- Select two or more package files to verify mods beteween them

***** There are hundreds of customizing plugins in this tool and, obviously, i did'nt tested them all.

******* I'm not a native english speaker

Additional Credits:
This tool uses Postal-API []
Tags: #mod generator

Operating System: Windows Linux Mac OS X
Utility Type: CC Editors
Plugin Type: Not Applicable

You must have the expansion or stuff packs listed below installed to use this custom content. Please see the post text for any exceptions.

Sims 3
Key: - File was updated after upload was posted
Filename - Tip: You can click the magnifying glass to see the archive contents Size Downloads Date | The Sim 3 Mod Generator 0.2.1 (AKA Sims Customizer)

Size: 1.33 MB · Downloads: 18,043 · 9th Jul 2009
1.33 MB 18,043 9th Jul 2009
Don't forget to Thank the creator after downloading! Use the Thanks button located above the screenshots above.
Quick Guide:

1. Click the file listed on the Files tab to download the file to your computer.
2. Extract the zip, rar, or 7z file. Now you will have either a .package or a .sims3pack file.

For Package files:

1. Cut and paste the file into your Documents\Electronic Arts\The Sims 3\Mods\Packages folder. If you do not already have this folder, you should read the full guide to Package files first: Sims 3:Installing Package Fileswiki, so you can make sure your game is fully patched and you have the correct Resource.cfg file.
2. Run the game, and find your content where the creator said it would be (build mode, buy mode, Create-a-Sim, etc.).

For Sims3Pack files:

1. Cut and paste it into your Documents\Electronic Arts\The Sims 3\Downloads folder. If you do not have this folder yet, it is recommended that you open the game and then close it again so that this folder will be automatically created. Then you can place the .sims3pack into your Downloads folder.
2. Load the game's Launcher, and click on the Downloads tab. Find the item in the list and tick the box beside it. Then press the Install button below the list.
3. Wait for the installer to load, and it will install the content to the game. You will get a message letting you know when it's done.
4. Run the game, and find your content where the creator said it would be (build mode, buy mode, Create-a-Sim, etc.).

Extracting from RAR, ZIP, or 7z: You will need a special program for this. For Windows, we recommend 7-Zip and for Mac OSX, we recommend Keka. Both are free and safe to use.

Need more help?

If you need more info, see:
160 Comments / Replies (Who?) - 152 Feedback Posts, 6 Thanks Posts
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Test Subject
#151 Old 9th Jun 2010 at 9:06 AM
Oh, I understood my mistake
It's really amazing programm, thank you very-very-very much!
Test Subject
#152 Old 16th Sep 2010 at 12:51 PM
Can somebody possibly make a "simple" but "not so simple" mod for enable the "Add a sim" cheat back so that I can have a house of more than +8 sims? I would be eternally grateful!

And you don't have to worry about aging and regeneration. I just want to have about 12 sims in a house and play endlessly! Can anyone possibly make this mod?

Please let me know ASAP! Again, thank you for those who might kindly consider!
Test Subject
#153 Old 21st Feb 2011 at 9:50 PM
thank you for all your hard work
Lab Assistant
#154 Old 16th Mar 2011 at 5:05 PM
this thing seems like alot of fun but i am haveing a issue when i try to export my mod it locks up never dose any thing am i doing something wrong?
Test Subject
#155 Old 3rd May 2011 at 12:56 AM
Originally Posted by blackhand8657
Maybe I just skipped past it, i dunno, but is there a plugin that alters the probability of finding certain metals, gems, insects, or maybe somethin that modifies how many would be in a certain spawn point? thanks in advance

turn on "testingCheatsenabled true"
then "buydebug" or "buy debug"

which will then allow you to do just that
Field Researcher
#156 Old 19th Oct 2011 at 5:32 PM
thank you :D
Lab Assistant
#158 Old 13th Aug 2014 at 2:54 PM
Will this program ever be updated? It sounds like it was nice.

What is a beginner to do? My Website My TOT My Forum My website
Test Subject
#159 Old 10th Oct 2014 at 4:28 PM
Thank you
Test Subject
#160 Old 23rd Nov 2014 at 4:17 AM
thx, finally i can start my own mod in sims
Lab Assistant
#161 Old 22nd Jul 2018 at 11:58 PM
update this please
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