The presence of an active hippodrome in a city boosts Prosperity. If lots of people eat more than one type of food, Prosperity rises Housing levels (having quite a few villas in your city boosts Prosperity, while a large proportion of your citizens living in tents and shacks reduces it) Wage rate (paying more than Rome boosts Prosperity, while paying less reduces it) Should the city ever fail to pay tribute to Rome, its Prosperity falls If the city needs additional funds from Rome, its Prosperity rating falls Unemployment (very low levels boost the rating, high levels reduce it) Ĭity profitability (excluding construction costs, if your city takes in more denarii than it spends, the Prosperity rating will rise, and if it takes in less than it spends, the rating will fall) TThe Prosperity rating is a measure of the overall wealth of your city and its people.