package file trait just place it in the Electronic Arts > The Sims 4 > Mods folder. Installing these custom traits is pretty easy.

These traits function almost like every other trait: some give certain benefits for skills, careers etc, some disadvantages and they’ll determine the whims of your Sims. There are so many custom traits for The Sims 4 that you can find all over the internet so I came to an idea to compile some of the most useful traits that you can find.