Dark Ages is the 7th expansion to Dominion. It adds 35 new Kingdom cards, plus Ruins (bad cards given to others), Shelters (replacing starting Estates), and cards obtainable only through specific cards. The main themes focus on trash and upgrading, featuring cards that activate when trashed, interact with the trash pile, upgrade themselves, or upgrade other cards.
Times are tough. You've swapped your castle for a ravine to save money. The castle was always plagued by looters and diseases anyway. The ravine offers plenty of sunlight and space for rubbish. You've taken up begging, though it's challenging since everyone's skint. You trade twigs with villagers, but nobody gains much. Still, whether facing plagues, barbarians or illiteracy, you're determined to weather the storm and emerge slightly ahead of the rest.