The Obsession:Upstairs, Downstairs expansion adds the Howard family board to the mix, which gives the advantage of having the most talented cook on staff. The expansion also adds 49 additional guests, five new improvement tiles, milestones, larger courtship cards, and three new game modes (Solo Estate Challenge, Tableau Obsession, and Cooperative Obsession).

Thisexpansion enables a 5th player.When combined with the Wessex expansion, it enables a 6th player.