Solo un albañil experimentado es capaz de trabajar con confianza las distintas rocas locales. Realiza este Estudio para acelerar la producción de Piedra.
| Nivel | Comida | Madera | Hierro | Piedra | Plata | Oro | Tiempo | Requisitos | Producción de Piedra aumentada | Poder | Experiencia del Héroe |
| 1 | 150 | 200 | 250 | 15 | 1.4K | 435 | 01h 30m 00s | 1% | 70 | 6K | |
| 2 | 300 | 400 | 500 | 25 | 3.5K | 605 | 03h 00m 00s | Academia 2 | 3% | 170 | 12K |
| 3 | 600 | 800 | 1K | 50 | 8.75K | 870 | 06h 00m 00s | Academia 4 | 6% | 420 | 18K |
| 4 | 1.2K | 1.6K | 2K | 100 | 22K | 1.35K | 12h 00m 00s | Academia 6 | 10% | 1.05K | 24K |
| 5 | 2.4K | 3.2K | 4K | 200 | 55K | 2.25K | 1d 00h 00m 00s | Academia 8 | 15% | 2.65K | 30K |
| 6 | 4.8K | 6.4K | 8K | 400 | 140K | 3.95K | 2d 00h 00m 00s | Academia 11 | 22% | 6.55K | 36K |
| 7 | 9.6K | 13K | 16K | 800 | 345K | 6.9K | 3d 21h 00m 00s | Academia 14 | 31% | 16.5K | 42K |
| 8 | 19.5K | 26K | 32K | 1.6K | 855K | 13.5K | 1w 1d 00h 00m 00s | Academia 16 | 43% | 41K | 48K |
| 9 | 38.5K | 51.5K | 64K | 3.2K | 2.15M | 25K | 2w 2d 00h 00m 00s | Academia 17 | 58% | 105K | 54K |
| 10 | 77K | 105K | 130K | 6.4K | 5.35M | 45K | 4w 3d 00h 00m 00s | 78% | 260K | 60K | |
| 154.05K | 208.1K | 257.75K | 12.79K | 8.93M | 99.86K | 8w 6d 19h 30m 00s | 78% | 433.41K | 330K |
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