#Empire z level 22 upgrade#

Oil is required for most structures and many research upgrades as well as creating offense/defense units. Mine capacity and income stack per number of mines you own for example: 2 mines at level 6 and 4 mines at level 7 = 171,000 capacity / 3,420 hourly income. Upgrading your mines increases the rate at which you generate metal, as well as how much metal you can store. Metal is required for most structures and many research upgrades as well as creating offense/defense units.

Lumber Mill capacity and income stack per number of lumber mills you own for example: 2 lumber mills at level 6 and 4 lumber mills at level 7 = 228,000 capacity / 4,560 hourly income. Upgrading the Lumber Mill increases the rate at which you harvest lumber, as well as how much lumber you can store. Lumber Mills harvest lumber for your city. Lumber is required for most structures and many research upgrades as well as creating offense/defense units. Farm capacity and income stack per number of farms you own for example: 2 farms at level 6 and 4 farms at level 7 = 285,000 capacity / 5,700 hourly income. Upgrading the Farm increases the rate at which you grow food, as well as how much food you can store. Other players combat this need by marching on Farm tiles with their armies, researching food generating upgrades and trading with other Alliance members. Thankfully only the food resource is used in upkeep, therefore many players choose to have more farms than other resource generating buildings in their cities. Not only does it cost resource to create your army, but to keep it alive as well. Offensive Unit upkeep is a game construct used as a resource sink in many war games. Food also has the distinction of being the only resource required for Upkeep. (per second)(changes if you research gather speed and in the skill tree)ДЇood is required for purchasing all offensive and defensive units as well as nearly all building upgrades.

#Empire z level 22 upgrade#

Resources are required to purchase buildings, upgrade buildings, train troops, and research upgrades.