Units DEF II
Increase units' DEF
Max level: 5
Research levels
| Level |  Power |  Food |  Iron |  Coin | Base research time | Requirements |
|---|---|---|---|---|---|---|
| 1 | 1,100 | 155,500 | 155,500 | 466,600 | 1 hr 31 min |
|
| 2 | 2,300 | 186,600 | 186,600 | 559,900 | 2 hr 16 min |
|
| 3 | 4,200 | 466,600 | 466,600 | 1,399,700 | 3 hr 24 min |
|
| 4 | 6,600 | 793,200 | 793,200 | 2,379,500 | 5 hr 5 min |
|
| 5 | 9,100 | 872,500 | 872,500 | 2,617,400 | 9 hr 40 min |
|