Subordinate Cities

Subordinate Cities are cities in which you may capture throughout the world map, each offering their own buffs specialised to their culture. These buffs vary depending on the level (colour) of the city. The lowest being common (white), uncommon (green), excellent (blue), legendary (purple) and epic (yellow).

You can have a total of 12 subordinate cities. The first three are unlocked automatically, one of which is your in-city subordinate city. You can then get a total of 9 through Rank (prestige) increases, another two from reaching VIP 15 and VIP 18, and the final one from an unlock key (typically found in auction).

Below is a table of every type of subordinate city and their buffs:

Culture	Buff	White	green	blue	purple	gold
Japan	City attack	2%	4%	6%	8%	10%
	Material Prod	1%	2%	3%	4%	5%
Russia	In city attack	2%	4%	6%	8%	10%
	Trap Attack	3%	6%	9%	12%	15%
Arabia	Hospital cap	3%	6%	9%	12%	15%
	Healing speed	2%	4%	6%	8%	10%
China	City production	4%	8%	12%	16%	20%
	Training speed	2%	4%	6%	8%	10%
Korea	Warehouse cap	6%	12%	18%	24%	30%
	Extra gather resources	3%	6%	9%	12%	15%
America	Gold production	10%	20%	30%	40%	50%
	Research Speed	3%	6%	9%	12%	18%
Europe	Construction speed	3%	6%	9%	12.5%	15%
	Monster Exp	25	4%	6%	8%	10%

Also for each city you also have war tactics, which gains death to wounded percentage, and sub city training, which increases troop training speed in sub, which increases like:
White: War tactics – 2%, Sub Training – 2%
Green: War tactics – 4%, Sub Training – 5%
Blue: War tactics – 6%, Sub Training – 10%
Purple: War tactics – 8%, Sub Training – 15%
Gold: War tactics – 10%, Sub Training – 20%