"Steel Mills produce Steel needed for units and defensive buildings. Upgrade Steel Mill to increase its output and storage capacity"
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| Level 1 | Level 2 | Level 3 | Level 4 | Level 5 |
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|---|---|---|---|
| Level 6 | Level 7 | Level 8 | Level 9 |
| HQ Level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| Number Available | 1 | 2 | 3 | 4 | 5 | 5 | 6 | 6 | 6 |
| Building Size | Boost Duration | Boost Effect |
|---|---|---|
| 6x6 | 6 hours | increase resource production by 100% |
| Level | HQ
Unlocked |
Upgrade Cost
(Gold) |
Build Time | XP Gain | Health | Max Capacity
(Steel) |
Production
per Hour (Steel) |
Boost Cost
(Tokens) |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 150 | 1m | 7 | 50 | 1,000 | 250 | 45 |
| 2 | 2 | 900 | 5m | 17 | 70 | 1,500 | 450 | 50 |
| 3 | 2 | 2,000 | 15m | 30 | 110 | 5,000 | 650 | 56 |
| 4 | 3 | 8,000 | 1h | 60 | 18 | 15,000 | 850 | 63 |
| 5 | 4 | 16,000 | 2h | 84 | 232 | 25,000 | 1,100 | 71 |
| 6 | 5 | 48,000 | 6h | 146 | 296 | 50,000 | 1,500 | 80 |
| 7 | 6 | 84,000 | 12h | 207 | 378 | 80,000 | 2,000 | 90 |
| 8 | 7 | 160,000 | 1d | 293 | 483 | 110,000 | 2,500 | 101 |
| 9 | 8 | 350,000 | 2d | 415 | 618 | 150,000 | 3,000 | 114 |