🌫️ Mystify for TS4

Mystify is a small mod that adds temporary transparency to Sims and objects.
These changes are not saved — they are reset when the game is reloaded.

• Opacity between 30% and 100% is safe to use.
• Opacity between 0% and 20% makes Sims and objects hard to see and unclickable.
• Sims will still interact with invisible Sims and objects.

⚙️ Menus

• Normal menu: 40%, 60%, 80%, 100% (Show)
• More menu: 30%, 50%, 70%, 70%
• Risky menu: 0%, 10%, 20% (Hide)
• Reset menu: Reset all Sims and/or objects
  To reset the currently played Sim, select any Sim or object and choose:
  Mystify > Reset > Self

🔮 Future

A TheVoid/Nothingness class is planned.
It will be triggered by transparent objects and gradually make other objects in the zone invisible.

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📝 Addendum

🔄 Game compatibility

This mod has been tested with The Sims 4 1.120.117, S4CL 3.17, TS4Lib 0.3.42. It is expected to remain compatible with future releases of TS4, S4CL, and TS4Lib.

📦 Dependencies

Download the ZIP file - not the source code. Required components:

• This Mod
• TS4-Library
• S4CL
• The Sims 4

If not already installed, download and install TS4 and the listed mods. All are available for free.

📥 Installation

• Locate the localized The Sims 4 folder (it contains the Mods folder).
• Extract the ZIP file directly into this folder.

This will create:

• Mods/_o19_/$mod_name.ts4script
• Mods/_o19_/$mod_name.package
• mod_data/$mod_name/*
• mod_documentation/$mod_name/* (optional)
• mod_sources/$mod_name/* (optional)

Additional notes:

• CAS and Build/Buy UGC without scripts will create Mods/o19/$mod_name.package.
• A log file mod_logs/$mod_name.txt will be created once data is logged.
• You may safely delete mod_documentation/ and mod_sources/ folders if not needed.

📂 Manual Installation

If you prefer not to extract directly into The Sims 4, you can extract to a temporary location and copy files manually:

• Copy mod_data/ contents to The Sims 4/mod_data/ (usually required).
• mod_documentation/ is for reference only — not required.
• mod_sources/ is not needed to run the mod.
• .ts4script files can be placed in a folder inside Mods/, but storing them in _o19_ is recommended for clarity.
• .package files can be placed in a anywhere inside Mods/.

🛠️ Troubleshooting

If installed correctly, no troubleshooting should be necessary. For manual installs, verify the following:

• Does your localized The Sims 4 folder exist? (e.g. localized to Die Sims 4, Les Sims 4, Los Sims 4, The Sims 4, ...)

  • Does it contain a Mods/ folder?
    • Does Mods/o19/ contain:
      • ts4lib.ts4script and ts4lib.package?
      • {mod_name}.ts4script and/or {mod_name}.package

• Does mod_data/ contain {mod_name}/ with files?

• Does mod_logs/ contain:

  • Sims4CommunityLib_*_Messages.txt?
  • TS4-Library_*_Messages.txt?
  • {mod_name}_*_Messages.txt?

• Are there any last_exception.txt or last_exception*.txt files in The Sims 4?

• When installed properly this is not necessary at all. For manual installations check these things and make sure each question can be answered with 'yes'.

• Does 'The Sims 4' (localized to Die Sims 4, Les Sims 4, Los Sims 4, The Sims 4, ...) exist?

  • Does The Sims 4 contain the folder Mods?
    • Does Mods contain the folder _o19_?
      • Does _19_ contain ts4lib.ts4script and ts4lib.package files?
      • Does _19_ contain {mod_name}.ts4script and/or {mod_name}.package files?
  • Does The Sims 4 contain the folder mod_data?
    • Does mod_data contain the folder {mod_name}?
      • Does {mod_name} contain files or folders?
  • Does The Sims 4 contain the mod_logs ?
    • Does mod_logs contain the file Sims4CommunityLib_*_Messages.txt?
    • Does mod_logs contain the file TS4-Library_*_Messages.txt?
      • Is this the most recent version or can it be updated?
    • Does mod_logs contain the file {mod_name}_*_Messages.txt?
      • Is this the most recent version or can it be updated?
  • Doesn't The Sims 4 contain the file(s) last_exception.txt and/or last_exception*.txt ?

• Share the The Sims 4/mod_logs/Sims4CommunityLib_*_Messages.txt and The Sims 4/mod_logs/{mod_name}_*_Messages.txt file.

If issues persist, share: mod_logs/Sims4CommunityLib_*_Messages.txt mod_logs/{mod_name}_*_Messages.txt

🕵️ Usage Tracking / Privacy

This mod does not send any data to external servers. The code is open source, unobfuscated, and fully reviewable.

Note: Some log entries (especially warnings or errors) may include your local username if file paths are involved. Share such logs with care.

🔗 External Links

Sources Support Donations

⚖️ Copyright and License

• © 2020-2025 Oops19
• .package files: Electronic Arts TOS for UGC
• All other content (unless otherwise noted): CC BY 4.0

You may use and adapt this mod and its code — even without owning The Sims 4. Have fun extending or integrating it into your own mods!

Oops19 / o19 is not affiliated with or endorsed by Electronic Arts or its licensors. Game content and materials © Electronic Arts Inc. and its licensors. All trademarks are the property of their respective owners.

🧾 Terms of Service

• Do not place this mod behind a paywall.
• Avoid creating mods that break with every TS4 update.
• For simple tuning mods, consider using:
  • Patch-XML
  • LiveXML.
• To verify custom tuning structures, use:
  • VanillaLogs.

🗑️ Removing the Mod

Installing this mod creates files in several directories. To fully remove it, delete:

• The Sims 4/Mods/_o19_/$mod_name.*
• The Sims 4/mod_data/_o19_/$mod_name/
• The Sims 4/mod_documentation/_o19_/$mod_name/
• The Sims 4/mod_sources/_o19_/$mod_name/

To remove all of my mods, delete the following folders:

• The Sims 4/Mods/_o19_/
• The Sims 4/mod_data/_o19_/
• The Sims 4/mod_documentation/_o19_/
• The Sims 4/mod_sources/_o19_/