Gate

“Allows your defenders to move through your walls and attack enemies.”

Levels

Gate allow defensive troops and Roads to pass through Walls.
Severely weaker then Walls, Gates are a weak point, and should only be used to allow defensive troops to move through them.
Guerillas and event troops such as Shinobis can walk through Gates whilst being unnoticed by defensive buildings.
A Gate cannot be rotated manually, and must be placed next to a Wall to rotate
A Gate cannot be placed next to another Gate, unless placed diagonally.
You can start using Gold or Food to upgrade Gates at level 9 instead of just Gold prior.

After completing Ramparts in the Library available at level 2. Ramparts chapter 2 will increase Wall and Gate health by 10%.

Studying Chief Hiawatha at the University will give a 10% discount on all Walls and Gates (2 areas of study at a maximum of 5% each).
Studying Sultan Saladin at the University (lvl 4 Wall and Gate Hitpoints) give completed 30% additional Hitpoints.
The Wall Blessing give a 30% health boost to Walls and Gates.
The Indians Coalition gives a health boost to Walls during World War.

Level	Build cost	Build cost	Citizens Needed	Build Time	HP	Age Unlocked
1	200	NA	1	0s	480	Bronze Age
2	1,000	NA			960	Bronze Age
3	5,000	NA			1,920	Iron Age
4	10,000	NA			3,840	Classical Age
5	30,000	NA			5,440	Classical Age
6	90,000	NA			7,040	Medieval Age
7	200,000	NA			8,880	Medieval Age
8	500,000	NA			10,080	Gunpowder Age
9	1,000,000	1,000,000			11,280	Gunpowder Age
10	3,000,000	3,000,000			12,480	Enlightenment Age
11	4,000,000	4,000,000			13,680	Enlightenment Age
12	5,000,000	5,000,000			14,880	Industrial Age
13	6,000,000	6,000,000			16,680	Industrial Age
14	7,000,000	7,000,000			18,350	Global Age
15	8,000,000	8,000,000			24,000	Atomic Age
16	9,000,000	9,000,000			27,600	Cold War Age

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