Modding any game can be overwhelming, especially if you don't have experience with the underlying technologies like Python, and XML.
The first step is to familiarize yourself with these technologies and how they are applied to the game's resources.
This will be the primary technology you'll need to understand to successfully create any form of custom content for the game. XML is used for most
Tuning files, which explain how to the game specific object or interaction should function.
Maxis provides documentation for most Tuning resources which can be found at my TDESC Browser. Maxis may make updates to their code which means their documentation will need to be updated. I will keep the Browser up to date with the TDESC files provided the Gurus on The Sims forums.
A scripting language that powers the simulation code. You will need to understand the rules and syntax to successfully create a
If there's anything I learned over the past year of modding, join the community and ask for help!
These applications will let you read and edit files related to the game, like packages, tuning files, string tables, images, sounds, effects.
For your first mod, you will only need Sims4Studio.
Consider becoming a Patron to support new mods
and to help keep the TDESC Browser up-to-date.