Iron Output IV
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AQuick answer
Iron Output IV has 3 Academy levels. The table below is the per-level resource and time cost, plus the listed power and buff increment at each rank.
Per-level costs
| Level | Food | Wood | Stone | Iron | Gold | Time |
|---|---|---|---|---|---|---|
| 1 | 1,200,000 | 1,200,000 | 240,000 | 62,000 | 16,000 | 11h 6m |
| 2 | 1,700,000 | 1,700,000 | 340,000 | 86,000 | 22,000 | 16h 40m |
| 3 | 3,700,000 | 3,700,000 | 740,000 | 180,000 | 48,000 | 1d 20h 26m |
Buff and prerequisites
| Level | Buff | Power | Prerequisites |
|---|---|---|---|
| 1 | +7% | 1,800 | Academy Lv. 25 Bread Output V Lv. 1 Stone Output Iv Lv. 1 Wood Output V Lv. 1 |
| 2 | +6.5% | 1,700 | Iron Output Iv Lv. 1 |
| 3 | +9% | 2,300 | Iron Output Iv Lv. 2 |
Names and costs are in-game labels. We do not copy third-party writeups of what the tech is "for."