This room contains all collection items available in the game up until the release of the For Rent expansion pack. I am not going to specify packs needed, because if you do not have a pack the item will simply not place and won't be needed. If you place this room all of your collections in game will be achieved. You need to drag each item from the room into your sim's inventory for the completion to be acknowledged. Please remember that there is a wall in the center of the room that will need to be on full walls up view to remove the items from it as well, so walls completely up to access all the collections. You can see all of my collection rooms on the official forums here https://forums.thesims.com/en_US/discussion/851201/full-collection-updated-december-2023-on-page-26-for-rent#latest