Hardened Cities

An upgrade in the Harmony Tree, ground infrastructure becomes more fortified against bombardment, lessining the loss of life and damage recieved when under siege.
Upgrade Level	Upgrade Time	
Bombadment Resistence	Cost(Credits/Metal/Crystal)
1 	79 	5% 	1200/200/325
2 	89 	10%	1300/275/350
3 	100 	15%	1400/250/375
Category:Materialization