Expanded Alchemy – Add Custom Alchemy Recipes, Gems, Metals, Rocks, Insects, and Fish
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2026/11/03
- Made it so that cash registers for alchemy shops would already have their script classes changed, so no adjustments from the user are needed anymore.
- Made it so that store-bought uranium would also cause nausea. Any cash registers for alchemy shops in saves made before this update need to be replaced (e.g., by building on the lot with testing cheats and using the eyedropper tool to copy and place a new register and deleting the old one) for this to work.
- Made uranium cause nausea. Any uranium acquired before this update will not have this effect. You can clone the uranium from previous versions with the science research station from University Life to get one that does have this effect.
- Added the remaining elixirs to the shops (only half of them could show up in the shops before).
🎃 Happy Halloween, Simmers! 🎃
Due to its supernatural connotations, I decided to release this framework as part of the holiday.
I have included a sample package in addition to the core package for those who want to see its capability (or are amused by the elixirs I made). The sample package includes the following:
| Type | Name | Notes |
|---|---|---|
| Elixir | Alchemist's Fire | Sets the target Sim on fire. |
| Elixir | Bottled Frostbite | Freezes the target Sim solid. |
| Elixir | Chrome Dome | Makes the target Sim bald. Requires Uranium, which is also included in the sample package (see below). |
| Elixir | Palate Cleanser | Lowers the the target Sim's hunger motive by a significant amount. |
| Elixir | Rough and Tough | Gives the target Sim 100 fitness. |
| Elixir | Vial of Guaranteed Enmity | Gives the target Sim the "Imminent Nemesis" moodlet, which guarantees that the next Sim they talk to will become enemies with them. |
| Elixir | Vial of Guaranteed Passion | Gives the target Sim the "Imminent Romance" moodlet, which guarantees that the next Sim (in accordance with the age and blood relation restrictions) they talk to will fall in love with them. |
| Elixir | Weak and Meek | Gives the target Sim 0 fitness. |
| Gem | Uranium | Has its own spawner and can be found in alchemy shops as well. |
Hereinafter is information relevant to modders. To users simply wanting to install packages that include new content, you can stop reading.
Information for Modders
I have included a generator as a program to add new alchemy recipes, gems, metals, rocks, insects, and fish. It creates a new package that the base package accepts to add those things into the game. This will be familiar to those who have used CCLoader Generator.
Within the archive of that download is an executable that when double clicked will create a template XML in the same folder, which you can make a copy of and add entries to. You would then drag and drop the modified XML onto the same executable to generate a package.
In that XML, you'll find example entries of each type of thing that can be added. Do not remove these entries. Simply insert new ones after the example entries of each type. One can find examples used by the unmodded game in GameplayData.package in the game files (the names of the _XML resources are pretty straightforward and thus easy to find without stating their names).
It is important to note that there are some name differences in the XML entries for things like spawners to distinguish between those for fish, insects, and gems, rocks, and metals (e.g., "SpawnersRockGemMetal" instead of "Spawners" for rocks, gems, and metals), as everything is defined in a single XML. Just remember to check the names of the example entries in the template if copying from the game's XMLs, and change the names of the copied entries accordingly.
Source code available here
Credits
- douglasveiga (Created CCLoader, useful for adding ingredients (among other things) to the game, and also reverse engineered to make this framework)
- pljones (Provided the s3pi library which serves as the basis of this framework's generator and many other Sims 3 tools)
- icarus_allsorts (Created Transmogrifier, whose code I borrowed to change the script classes of existing cash registers in alchemy shops)
- murkoose (Provided the Russian translations)
- ECM6215A (Provided the Spanish translations)
- Likely others whose names elude me (sorry!)
| Filename | Type | Size |
|---|---|---|
| ExpandedAlchemy.zip | zip | |
| ExpandedAlchemy.package | package | 73336 |
| ExpandedAlchemy_BaseSample.package | package | 197187 |
| Filename | Type | Size |
|---|---|---|
| ExpandedAlchemy_Generator.zip | zip | |
| ExpandedAlchemy_Generator.exe | exe | 482304 |
| gpl-3.0.txt | txt | 35147 |
|
ExpandedAlchemy.zip
| This is the core of the mod. Without this, no custom potions, gems, metals, rocks, insects, fish, etc. can be loaded in. Also includes a sample module with 8 potions.
Download
Uploaded: 3rd Nov 2026, 70.4 KB.
211 downloads.
|
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|
ExpandedAlchemy_Generator.zip
| This is the generator for modders to create custom potions, gems, metals, rocks, insects, fish, etc.
Download
Uploaded: 31st Oct 2026, 220.0 KB.
52 downloads.
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| For a detailed look at individual files, see the Information tab. | ||||||||
Install Instructions
1. Click the download button, or the filename, 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:
- For package files: Sims 3:Installing Package Fileswiki
- For Sims3pack files: Game Help:Installing TS3 Packswiki
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Uploaded: 31st Oct 2026 at 2:18 AM
Updated: 3rd Nov 2026 at 9:28 PM
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Packs Needed
| Base Game | |
|---|---|
![]() | Sims 3 |
| Expansion Pack | |
|---|---|
![]() | Supernatural |
About Me
I have a passion for The Sims 3, computer science, and banana smoothies.
I don’t take requests, unless I find them super duper interesting. :P
I am open to collaborations though. :)
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Expanded Alchemy – Add Custom Alchemy Recipes, Gems, Metals, Rocks, Insects, and Fish

