47 46 increase the amount of production each material in your city gives you Essence - Essence is a measure of the magical potential of your city. It is the third of the core tile yield resources along with Grain and Materials. The amount of Essence a city has dictates how many magical enchantments can be cast on that city, one for each Essence. There area number of magical improvements that are more powerful in cities with higher Essence values Population - Population is the measure of how many citizens are in a city. It is crucial to progressing your city as you hit certain population marks your city will level up, increasing a number of other resources and unlocking special bonuses Growth - Growth is a measure of how many citizens will flock to a particular city each turn. As your city gains levels, your growth will increase and your population will increase faster and faster. If you feel the need to grow even faster there area variety of improvements you can build to increase city growth.