Spooky Day is the one holiday the base game actually commits to, and it still runs out of ideas by the second October. You get a handful of costumes, a few pumpkins to carve and a party that looks the same every year — so the moment your households start celebrating it more than once, everything Halloween in your game is coming from custom content.
This collection is every Halloween find in our catalog in one grid: 190 mods, sorted by downloads, and every one of them says Halloween (or spooky, haunted, zombie, trick-or-treat, Simblreen) in its own title. That last part is deliberate. Seasonal tags are the easiest facet to get wrong — a generic witch mod or a pair of sneakers that happened to appear in a Halloween roundup is not Halloween CC — so this grid only holds items whose creator called them that.
The shelf splits roughly three ways. Costumes and CAS: full Halloween outfits (adult and toddler), face paint and zombie makeup, Halloween eyes, lashes and nails, and a stack of Simblreen gifts — the fandom's October gift-exchange event, which is where a lot of the best free sets come from. Build and decor: carved pumpkins, porch clutter, candles, framed posters and full decor sets, plus more than a dozen haunted-house lots ready to drop into a world. And the finishing touches: Halloween loading screens and CAS backgrounds, trick-or-treat and zombie pose packs for the screenshots.
Two practical notes. Plenty of these are dated sets ("Halloween 2022", "Halloween 2025") that creators re-release every year — the older ones generally still work, but check the creator page for a newer version before you install both. And costume sets marked for toddlers or children are separate meshes, so an adult costume will not show up on a kid sim.
Everything in this grid is Sims 4 only, filtered to SFW, and checked for a working download link — 182 of the 190 are free. Sort by downloads for the sets everyone already runs, or scroll for the one-off Simblreen gifts the big roundups never reach.