Happy Holiday Pack is considered as the pilot release of stuff packs for The Sims 2. It offers only the new content made available in the 2005 version of the Holiday Edition to players who already owned a copy of the core game. The content from this pack is expanded with twenty new additional items in the third stuff pack The Sims 2: Happy Holiday Stuff. It includes things like Christmas, Hannukah, Halloween, New Year, and Baby New Year. It includes 45 items.