Buildings
Coal Mine
Produces Coal, the third production building unlocked. Levels 1-3 all just require Furnace Lv.3, then it tracks the Furnace level exactly from Level 4 on.
Subtypebuildings
CategoryInner City
Levels and effects
| Level | Power | Time | Metrics | Requirements | Costs | Effects |
|---|---|---|---|---|---|---|
| 1 | 40 | 1s | developmentIndex: 200 | building: furnace 3 | Wood × 30 | — |
| 2 | 76 | 2s | developmentIndex: 400 | building: furnace 3 | Wood × 45 | — |
| 3 | 130 | 10s | developmentIndex: 600 | building: furnace 3 | Wood × 200 | — |
| 4 | 202 | 35s | developmentIndex: 900 | building: furnace 4 | Wood × 450 · Coal × 90 | — |
| 5 | 310 | 1m 10s | developmentIndex: 1400 | building: furnace 5 | Wood × 1900 · Coal × 380 | — |
| 6 | 472 | 2m 20s | developmentIndex: 2100 | building: furnace 6 | Wood × 4800 · Coal × 960 · Iron × 240 | — |
| 7 | 706 | 4m 45s | developmentIndex: 3100 | building: furnace 7 | Wood × 17000 · Coal × 3400 · Iron × 865 | — |
| 8 | 940 | 7m 10s | developmentIndex: 4100 | building: furnace 8 | Wood × 31000 · Coal × 6300 · Iron × 1500 | — |
| 9 | 1174 | 10m 30s | developmentIndex: 5100 | building: furnace 9 | Wood × 65000 · Coal × 13000 · Iron × 3200 | — |
| 10 | 1514 | 14m | developmentIndex: 6800 | building: furnace 10 | Wood × 110000 · Coal × 23000 · Iron × 5700 | — |
| 11 | 1854 | 18m | developmentIndex: 8500 | building: furnace 11 | Wood × 110000 · Coal × 23000 · Iron × 5900 · Meat × 110000 | — |
| 12 | 2194 | 21m 30s | developmentIndex: 10200 | building: furnace 12 | Wood × 150000 · Coal × 30000 · Iron × 7500 · Meat × 150000 | — |
| 13 | 2768 | 26m | developmentIndex: 12900 | building: furnace 13 | Wood × 210000 · Coal × 42000 · Iron × 10000 · Meat × 210000 | — |
| 14 | 3342 | 33m 30s | developmentIndex: 15600 | building: furnace 14 | Wood × 280000 · Coal × 56000 · Iron × 14000 · Meat × 280000 | — |
| 15 | 3916 | 43m | developmentIndex: 18300 | building: furnace 15 | Wood × 410000 · Coal × 83000 · Iron × 20000 · Meat × 410000 | — |
| 16 | 4724 | 1h 13m | developmentIndex: 22000 | building: furnace 16 | Wood × 530000 · Coal × 100000 · Iron × 26000 · Meat × 530000 | — |
| 17 | 5532 | 1h 27m 30s | developmentIndex: 25700 | building: furnace 17 | Wood × 830000 · Coal × 160000 · Iron × 41000 · Meat × 830000 | — |
| 18 | 6340 | 1h 45m | developmentIndex: 29400 | building: furnace 18 | Wood × 1100000 · Coal × 220000 · Iron × 56000 · Meat × 1100000 | — |
| 19 | 7488 | 2h 38m | developmentIndex: 34800 | building: furnace 19 | Wood × 1400000 · Coal × 280000 · Iron × 70000 · Meat × 1400000 | — |
| 20 | 8636 | 3h 17m 30s | developmentIndex: 40200 | building: furnace 20 | Wood × 1900000 · Coal × 380000 · Iron × 96000 · Meat × 1900000 | — |
| 21 | 9784 | 4h 16m 30s | developmentIndex: 45600 | building: furnace 21 | Wood × 2400000 · Coal × 490000 · Iron × 120000 · Meat × 2400000 | — |
| 22 | 11506 | 6h 25m | developmentIndex: 53700 | building: furnace 22 | Wood × 3200000 · Coal × 640000 · Iron × 160000 · Meat × 3200000 | — |
| 23 | 13228 | 8h 59m | developmentIndex: 61800 | building: furnace 23 | Wood × 4000000 · Coal × 800000 · Iron × 200000 · Meat × 4000000 | — |
| 24 | 14950 | 12h 34m 30s | developmentIndex: 69900 | building: furnace 24 | Wood × 5400000 · Coal × 1000000 · Iron × 270000 · Meat × 5400000 | — |
| 25 | 16672 | 17h 36m 30s | developmentIndex: 78000 | building: furnace 25 | Wood × 7300000 · Coal × 1400000 · Iron × 360000 · Meat × 7300000 | — |
| 26 | 19202 | 20h 15m | developmentIndex: 89800 | building: furnace 26 | Wood × 9400000 · Coal × 1800000 · Iron × 470000 · Meat × 9400000 | — |
| 27 | 21732 | 1d 18m | developmentIndex: 101600 | building: furnace 27 | Wood × 13000000 · Coal × 2600000 · Iron × 670000 · Meat × 13000000 | — |
| 28 | 24262 | 1d 3h 57m | developmentIndex: 113400 | building: furnace 28 | Wood × 17000000 · Coal × 3500000 · Iron × 890000 · Meat × 17000000 | — |
| 29 | 26792 | 1d 8h 8m | developmentIndex: 125200 | building: furnace 29 | Wood × 22000000 · Coal × 4400000 · Iron × 1100000 · Meat × 22000000 | — |
| 30 | 30470 | 1d 14h 34m | developmentIndex: 142400 | building: furnace 30 | Wood × 27000000 · Coal × 5400000 · Iron × 1300000 · Meat × 27000000 | — |
| FC 1 | 31618 | 2s | developmentIndex: 147400 · fcStage: 1 | building: coal-mine 30 · building: furnace FC 2 | Wood × 6000000 · Coal × 1200000 · Iron × 300000 · Meat × 6000000 | — |