The Sims 4: Holiday Celebration Pack

The Sims 4: Holiday Celebration Pack is the only free DLC for The Sims 4. It was released on December 16, 2014. On December 4, 2015, December 1, 2016, October 17, 2017 and December 12, 2017 the pack received updates to add more content.

Official Description
Celebrate the holidays in The Sims

Celebrate the holidays in The Sims™ 4 with festive décor and add some cheer to your Sim’s wardrobe.

Celebrate the holidays in The Sims

''Add holiday themed content to your game at no cost. Decorate your Sims’ home with holiday themed décor, dress up in formal attire or wear an ugly sweater, and celebrate the holidays!''

Holiday-themed decorations.

''Decorate your Sims’ home with all sorts of awesome holiday-themed items. String up colorful lights and garland, place a snowman in your lawn, add snowflake decals to your windows, and blast festive tunes from the holiday wall speaker. Just don’t forget the presents!''

Festive wardrobe items.

''Dress to impress with some of the best holiday attire around! Celebrate in style with new dresses and tuxedos. Embrace holiday humor with ugly sweaters and toss on a silly Elf or Reindeer Hat.''