Tutorials related to modding and scripting can be found at https://simswiki.info/wiki.php?title=Tutorials:TS3_GeneralModding

Introduction

This is all the mumbo jumbo that goes on behind the scenes, we do not recommend that if you are new to this you just jump right in here, we advise learning some of the modding tutorials first to get your head around how the game works.

If you're looking for documentation of the in-game codebase, please see: TS3PR

Resources

• Package file format
• Sims3Pack file format
• Files by type code
• RCOL (scene)
• Catalog resource
• Catalog resource string table
• Key table and lists of resource references
• Product GUIDs - Used for installing/uninstalling.
• Version numbers
• Locales - Useful for finding TS3 in the Documents directory, among other things.
• Resource Chain