Buildings
Buildings do not mine on their own, they multiply what the drill produces. Every level of any building adds +20% mining speed, and the levels of all four add up into one multiplier.
Building multiplier = 1 + 20% × (sum of all building levels)
The cap is 20 levels per building. All four at maximum give
+1600% speed, so mining grows 17x. Fully upgrading every building costs
491,926 CROWN.

Mine Shaftbase 200 CROWN per level

Elevatorbase 300 CROWN per level

Warehousebase 400 CROWN per level

Smelterybase 600 CROWN per level
Prices per level
Levels 1–10 (tier I): base price × level number. Levels 11–20 (tier II, since 15 September): base price × 5 × 1.35 to the power (level − 11), so every next level costs 35% more than the previous one. Each building has its own base price. At tier II the building changes its look.
Mine Shaft
| Level | Speed | Level cost, CROWN | Spent in total |
|---|---|---|---|
| 1 | +20% | 200 | 200 |
| 2 | +40% | 400 | 600 |
| 3 | +60% | 600 | 1,200 |
| 4 | +80% | 800 | 2,000 |
| 5 | +100% | 1,000 | 3,000 |
| 6 | +120% | 1,200 | 4,200 |
| 7 | +140% | 1,400 | 5,600 |
| 8 | +160% | 1,600 | 7,200 |
| 9 | +180% | 1,800 | 9,000 |
| 10 | +200% | 2,000 | 11,000 |
| 11 | +220% | 1,000 | 12,000 |
| 12 | +240% | 1,350 | 13,350 |
| 13 | +260% | 1,823 | 15,173 |
| 14 | +280% | 2,460 | 17,633 |
| 15 | +300% | 3,322 | 20,955 |
| 16 | +320% | 4,484 | 25,439 |
| 17 | +340% | 6,053 | 31,492 |
| 18 | +360% | 8,172 | 39,664 |
| 19 | +380% | 11,032 | 50,696 |
| 20 | +400% | 14,894 | 65,590 |
Elevator
| Level | Speed | Level cost, CROWN | Spent in total |
|---|---|---|---|
| 1 | +20% | 300 | 300 |
| 2 | +40% | 600 | 900 |
| 3 | +60% | 900 | 1,800 |
| 4 | +80% | 1,200 | 3,000 |
| 5 | +100% | 1,500 | 4,500 |
| 6 | +120% | 1,800 | 6,300 |
| 7 | +140% | 2,100 | 8,400 |
| 8 | +160% | 2,400 | 10,800 |
| 9 | +180% | 2,700 | 13,500 |
| 10 | +200% | 3,000 | 16,500 |
| 11 | +220% | 1,500 | 18,000 |
| 12 | +240% | 2,025 | 20,025 |
| 13 | +260% | 2,734 | 22,759 |
| 14 | +280% | 3,691 | 26,450 |
| 15 | +300% | 4,982 | 31,432 |
| 16 | +320% | 6,726 | 38,158 |
| 17 | +340% | 9,080 | 47,238 |
| 18 | +360% | 12,258 | 59,496 |
| 19 | +380% | 16,549 | 76,045 |
| 20 | +400% | 22,341 | 98,386 |
Warehouse
| Level | Speed | Level cost, CROWN | Spent in total | Capacity |
|---|---|---|---|---|
| 1 | +20% | 400 | 400 | 40,000 |
| 2 | +40% | 800 | 1,200 | 80,000 |
| 3 | +60% | 1,200 | 2,400 | 160,000 |
| 4 | +80% | 1,600 | 4,000 | 320,000 |
| 5 | +100% | 2,000 | 6,000 | 640,000 |
| 6 | +120% | 2,400 | 8,400 | 1,280,000 |
| 7 | +140% | 2,800 | 11,200 | 2,560,000 |
| 8 | +160% | 3,200 | 14,400 | 5,120,000 |
| 9 | +180% | 3,600 | 18,000 | 10,240,000 |
| 10 | +200% | 4,000 | 22,000 | 20,480,000 |
| 11 | +220% | 2,000 | 24,000 | 40,960,000 |
| 12 | +240% | 2,700 | 26,700 | 81,920,000 |
| 13 | +260% | 3,645 | 30,345 | 163,840,000 |
| 14 | +280% | 4,921 | 35,266 | 327,680,000 |
| 15 | +300% | 6,643 | 41,909 | 655,360,000 |
| 16 | +320% | 8,968 | 50,877 | 1,310,720,000 |
| 17 | +340% | 12,107 | 62,984 | 2,621,440,000 |
| 18 | +360% | 16,344 | 79,328 | 5,242,880,000 |
| 19 | +380% | 22,065 | 101,393 | 10,485,760,000 |
| 20 | +400% | 29,787 | 131,180 | 20,971,520,000 |
Smeltery
| Level | Speed | Level cost, CROWN | Spent in total |
|---|---|---|---|
| 1 | +20% | 600 | 600 |
| 2 | +40% | 1,200 | 1,800 |
| 3 | +60% | 1,800 | 3,600 |
| 4 | +80% | 2,400 | 6,000 |
| 5 | +100% | 3,000 | 9,000 |
| 6 | +120% | 3,600 | 12,600 |
| 7 | +140% | 4,200 | 16,800 |
| 8 | +160% | 4,800 | 21,600 |
| 9 | +180% | 5,400 | 27,000 |
| 10 | +200% | 6,000 | 33,000 |
| 11 | +220% | 3,000 | 36,000 |
| 12 | +240% | 4,050 | 40,050 |
| 13 | +260% | 5,468 | 45,518 |
| 14 | +280% | 7,381 | 52,899 |
| 15 | +300% | 9,965 | 62,864 |
| 16 | +320% | 13,452 | 76,316 |
| 17 | +340% | 18,160 | 94,476 |
| 18 | +360% | 24,516 | 118,992 |
| 19 | +380% | 33,097 | 152,089 |
| 20 | +400% | 44,681 | 196,770 |
How the warehouse differs
The warehouse gives more than speed: it also sets how much ore and gold you can hold, and each of its levels doubles the capacity. Details are in the Warehouse section.
Crown Miner