Base Game Only keeps traits, aspirations, and preferences to true base-game content. Custom Packs lets you toggle official packs. Mod creators include Custom Generator, JayESims, Wicked Pixxel, Chingyu, NateTheL0ser, KiaraSims4Mods, SACRIFICIAL, SpinningPlumbobs, TURBODRIVER, Maplebell, Khlas, EllaNoir, Spent, Mythical Ascelin, Nisa K., ilkavelle, JaneSimsten, llazyneiph, and Lumpinou.
I wanted a truly extensive Sims generator, but I could never find one that went as deep as I wanted, so I decided to make one myself.
This generator is very much shaped around the way I personally play. You will notice custom occults, expanded lore, and unique descriptions that are not part of standard Sims gameplay. They are included because they are useful for my own saves and storytelling.
Feel free to use as much or as little of that as you like. You can ignore any custom occults, lore, or options that do not fit your game and simply use the parts that help you create Sims, households, and stories.