Mods that are zipped may need extraction. Mods Must Be Enabled in the game options menu in order to work. Mods are placed in your hard drive, but it varies between PC/Mac: Windows PC : /Documents/Electronic Arts/The Sims 4/Mods/ Mac: Use Finder and go to /Electronic Arts/The Sims 4/Mods/ For this reason I decided to curate a list of good-quality mods that are up-to-date at time of writing, and revisit this at times to remove mods that fall out of date and add new finds. Many modders have their own sites and do not host their files elsewhere, so mods for this game can be a bit scattered. Mods can add a lot of value to players who are looking for new experiences in The Sims 4, or when they're a bit bored between new Expansion Packs. The Sims 4 Mods Carl's List of The Best Mods for TS4
