Saltpetre Mine
Produces saltpetre.
- Category
- Mining
- Hit points
- 500
- Construction time
- 20 min
- Size
- 1×1
- Movable
- No
- Tradable
- No
Construction cost
Produces
SaltpetreLevels
| Level | Upgrade time | Upgrade cost | Input % | Output % |
|---|---|---|---|---|
| 1 | — | 100% | 100% | |
| 2 | 2 min 30 s | 200% | 200% | |
| 3 | 5 min | 300% | 300% | |
| 4 | 10 min | 400% | 400% | |
| 5 | 20 min | 500% | 500% | |
| 6 | 20 min | 600% | 600% | |
| 7 | 30 min | 700% | 700% |
