Units HP III
Increase units' HP
Max level: 5
Research levels
| Level |  Power |  Food |  Iron |  Coin | Base research time | Requirements |
|---|---|---|---|---|---|---|
| 1 | 2,500 | 872,500 | 872,500 | 2,617,400 | 9 hr 40 min |
|
| 2 | 5,500 | 1,221,500 | 1,221,500 | 3,664,400 | 19 hr 19 min |
|
| 3 | 9,000 | 1,710,000 | 1,710,000 | 5,130,100 | 1 day 12 hr 42 min |
|
| 4 | 12,500 | 1,710,000 | 1,710,000 | 5,130,100 | 1 day 12 hr 42 min |
|
| 5 | 17,200 | 3,043,900 | 3,043,900 | 9,131,600 | 2 days 18 hr 4 min |
|