Defensive Unit

Defensive Units are built from the Wall. Each unit uses one or more spaces, either Wall Defense spaces, or Field Defense spaces. The level of the wall determines how many spaces are available for defensive units. The total number of spaces provided by the wall is split evenly between Wall Defense and Field Defense. (e.g. a Level 9 wall provides 45000 Defensive Unit spaces, split into 22500 Wall Defense spaces and 22500 Field Defense spaces.)

Unlike Troops, Defensive Units do not consume food, nor do they contribute to the total might of the City.

Wall Defenses

Image	Name	Attack	Defense	Life	Range	Cost Food Wood Stone Ore	Space	Construction and Research Requirements
	Wall-Mounted Crossbows	600	60	2000	1300	250 2000 750 500	2	Lv.6 Wall Lv.6 Blacksmith Lv.5 Fletching
High powered crossbows mounted at the best vantage point for shooting enemies.
	Defensive Trebuchet	2550	0	0	5000	500 3500 1800 1200	4	Lv.9 Wall Lv.9 Blacksmith Lv.9 Fletching Lv.9 Geometry
Excellent at destroying enemy siege weapons, a trebuchet will only get one shot per battle and must then be rebuilt and reloaded.

Field Defenses

Image	Name	Attack	Defense	Life	Range	Cost Food Wood Stone Ore	Space	Construction and Research Requirements
	Caltrops	650	0	150	0	100 0 0 400	1	Lv.1 Wall Lv.1 Metal Alloys
Stops infantry troops from advancing until they are cleared. Positioned at the maximum attack range of the defenders.
	Spiked Barrier	1000	50	100	0	150 750 50 0	3	Lv.2 Wall Lv.2 Blacksmith Lv.2 Logging
Stops horse units (including siege weapons) from advancing until they are cleared. Positioned at the maximum attack range of the defenders.
	Trap	1500	0	0	0	400 800 200 400	4	Lv.4 Wall Lv.4 Blacksmith Lv.2 Poisoned Edge
Much like the modern land mine, these traps are buried around the castle, and deal damage to unsuspecting enemy attackers.