Base Defense
Mobile tower.png
Mobile Guard Tower
Mobile domedsentry.png
Domed Defense
Mobile rallyflag.png
Rally Flag
Mobile landmine.png
Mobile artillery.png
Mobile patriot.png
Mobile shockmine.png
Shock Mine
Mobile barrage.png
Metal Rain
Mobile railgun.png
Mobile wall.png
Mobile wall.png
—Image © Zynga
Walls are used to enclose and protect vital base structures and control movement of enemy forces. The amount of damage they can sustain before breaking increases as they are upgraded.
General Costs
Level 0
HPMobile hp black.png 100
HQ level1
Level 1
CostMobile resourcesupply black.png 100
HPMobile hp black.png 180
HQ level1
Level 2
CostMobile resourcesupply black.png 400
HPMobile hp black.png 200
HQ level3
Level 3
CostMobile resourcesupply black.png 1500
HPMobile hp black.png 240
HQ level5
Level 4
CostMobile resourcesupply black.png 4600 Mobile resourcesteel black.png 900
HPMobile hp black.png 384
HQ level7
Level 5
CostMobile resourcesupply black.png 12200 Mobile resourcesteel black.png 3700
HPMobile hp black.png 560
HQ level9
Level 6
CostMobile resourcesupply black.png 28600

Mobile resourcesteel black.png 12k

Mobile resourcetech black.png 1900
HPMobile hp black.png 750
HQ level11
Level 7
CostMobile resourcesupply black.png 59600

Mobile resourcesteel black.png 32700

Mobile resourcetech black.png 8600
HPMobile hp black.png 1040
HQ level13
Level 8
CostMobile resourcesupply black.png 110k

Mobile resourcesteel black.png 75300

Mobile resourcetech black.png 31200
HPMobile hp black.png 1326
HQ level15
Level 9
CostMobile resourcesupply black.png 225k

Mobile resourcesteel black.png 195k

Mobile resourcetech black.png 141k
HPMobile hp black.png 2034
HQ level18
Level 10
CostMobile resourcesupply black.png 318k

Mobile resourcesteel black.png 307k

Mobile resourcetech black.png 293k
HPMobile hp black.png 2540
HQ level20
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Walls are structures that passively protect other base structures by either blocking movement of enemy forces or by acting as a shield against anything that can't shoot over the wall. Walls are best at one thing only and that is to slow the enemy from destroying important base structures. However, smart wall placement can effectively funnel enemy forces away or towards certain areas such as into the firing range of multiple base defenses. With appropriate placement of walls and buildings with the use of trees, walls can become a force to be reckoned with.

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