Defence Systemsn increase the units' structure, making the units harder to destroy.
 

Requirements

 
Research Lab Level 5
 

Research Costs

 

Level		Metal	Construction time	Structure Bonus	Comment
1		2.500	00:52:05	+10%
2		5.000	01:44:10	+20%
3		10.000	03:28:20	+30%
4		20.000	06:56:40	+40%
5		40.000	13:53:20	+50%	is a requirement for Phoenix (additional requirements: Diffusion Engines Level 8 and Weapons Factory Level 7 )
6		80.000	1 D 03:46:40	+60%
7		160.000	2 D 07:33:20	+70%
8		320.000	4 D 15:06:40	+80%
9		640.000	9 D 06:13:20	+90%
10		1.280.000	?	+100%
11		2.560.000	37 D 00:53:20	+110%

 
List of Researchable Technologies