Info about all defense buildings, including their strenght, initial price, and unlock level.
Barbed Wire
Defence: 70
Initial: 238,000
Unlock lvl: 10
Concrete Wall
Defence: 100
Initial: 400,000
Unlock lvl: 15
Small Cannon
Defence: 135
Initial: 650,000
Unlock lvl: 20
Watchtower
Defence: 170
Initial: 1,190,000
Unlock lvl: 25
Stationary Artillery
Defence: 200
Initial: 2,125,000
Unlock lvl: 30
Bunker
Defence: 270
Initial: 5,950,000
Unlock lvl: 40
Large Cannon
Defence: 340
Initial: 13,600,000
Unlock lvl: 50
Laser Network
Defence: 540
Initial: 74,800,000
Unlock lvl: 80
Mine Belt
Defence: 710
Initial: 180,000,000
Unlock lvl: 100
Ion Shield
Defence: 990
Initial: 325,000,000
Unlock lvl: 135