Rampart

They are the main defense of your city, each race has different defensive attributes, and at the maximum level, you can achieve a minimum of 40% extra from your total defense.

Level	Clay	Wood	Iron	Food	Gold	Food consumption	Time
1	35	45	85	35	0.5	2	0:05:00
2	45	58	110	45	1	2	0:06:40
3	58	73	140	58	2	2	0:08:30
4	73	95	178	73	4	2	0:10:40
5	95	120	228	95	8	2	0:13:10
6	120	155	293	120	12	2	0:16:10
7	155	198	375	155	15	2	0:19:40
8	198	253	478	198	18	2	0:23:30
9	253	325	613	253	20	2	0:28:10
10	323	415	785	323	23	2	0:33:30
11	413	533	1003	413	25	3	0:39:40
12	530	680	1285	530	28	3	0:46:50
13	678	870	1645	678	30	3	0:55:10
14	868	1115	2105	868	32	3	1:04:50
15	1110	1425	2695	1110	35	3	1:16:00
16	1420	1825	3448	1420	38	3	1:29:00
17	1818	2338	4413	1818	40	3	1:44:10
18	2325	2990	5650	2325	43	3	2:01:40
19	2978	3828	7230	2978	45	3	2:22:00
20	3810	4900	9255	3810	50	3	2:45:30

Defensive bonus

Humans	Orcs	Elves
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.
+4.5% of the total defense.	+3% of the total defense.	+2% of the total defense.

Increases with each upgraded level.