Sea mines damage ships attacking this region. Each level lays an additional layer of mines, increasing both their sea defence and durability.
Cost
3,500
1
Construction Time
02:00:00
Mine fields damage ground forces attacking this region. Each level lays an additional layer of mines, increasing both their ground defence and how much punishment they can absorb.
Cost
5,500
1
Construction Time
01:00:00
Bunkers fortify this region against ground assaults. Each level reinforces the bunker, increasing both its ground defence and durability.
Cost
8,500
150
150
50
Construction Time
00:15:00
Anti aircraft guns defend this region against air, sea and ground attacks. Each level adds more guns, increasing both defence and durability.
Cost
25,000
150
350
Construction Time
04:00:00