Infantry DEF I
Increase Infantry Heroes' DEF
Max level: 5
Research levels
| Level |  Power |  Food |  Iron |  Coin | Base research time | Requirements |
|---|---|---|---|---|---|---|
| 1 | 300 | 9,100 | 9,100 | 27,300 | 24 min |
|
| 2 | 1,100 | 87,500 | 87,500 | 262,400 | 53 min |
|
| 3 | 2,900 | 419,900 | 419,900 | 1,259,700 | 2 hr 33 min |
|
| 4 | 5,700 | 1,099,300 | 1,099,300 | 3,297,900 | 14 hr 30 min |
|
| 5 | 10,700 | 3,561,300 | 3,561,300 | 10,684,000 | 3 days 12 hr 14 min |
|