Reading general medical books and regular practice bear fruit. As your healers discover the secrets of medicine, they heal more injured warriors. Conduct this Study to increase the capacity of Infirmaries.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Grant | Time | Requirements | Infirmaries' capacity | Power | Hero's Experience |
| 1 | 4.5M | 4.5M | 4.5M | 4.5M | 4.5M | 96.5K | - | 5w 00h 00m 00s | 0.5% | 300K | 130K | |
| 2 | 6.65M | 6.65M | 6.65M | 6.65M | 7.5M | 130K | - | 7w 2d 00h 00m 00s | Academy 20 | 1.5% | 500K | 155K |
| 3 | 9.75M | 9.75M | 9.75M | 9.75M | 12.5M | 170K | - | 10w 4d 00h 00m 00s | Academy 22 | 3% | 835K | 180K |
| 4 | 14.5M | 14.5M | 14.5M | 14.5M | 21M | 230K | - | 15w 2d 00h 00m 00s | Academy 24 | 5.5% | 1.4M | 205K |
| 5 | 21M | 21M | 21M | 21M | 34.5M | 305K | - | 22w 1d 00h 00m 00s | 9% | 2.35M | 230K | |
| 6 | 31M | 31M | 31M | 31M | 57.5M | 410K | - | 32w 00h 00m 00s | Academy 26 | 14% | 3.85M | 260K |
| 7 | 45.5M | 45.5M | 45.5M | 45.5M | 95M | 560K | 565 | 46w 3d 00h 00m 00s | Academy 27 | 20.5% | 6.4M | 295K |
| 8 | 66.5M | 66.5M | 66.5M | 66.5M | 160M | 760K | 820 | 67w 3d 00h 00m 00s> 1 Year(s) | 28.5% | 11M | 330K | |
| 9 | 97.5M | 97.5M | 97.5M | 97.5M | 265M | 1.05M | 1 200 | 97w 6d 00h 00m 00s> 1 Year(s) | 38% | 18M | 365K | |
| 10 | 145M | 145M | 145M | 145M | 440M | 1.45M | 1 750 | 142w 00h 00m 00s> 2 Year(s) | 50% | 29.5M | 410K | |
| 441.9M | 441.9M | 441.9M | 441.9M | 1.1B | 5.16M | 4.34K | 446w 00h 00m 00s> 8 Year(s) | 50% | 74.14M | 2.56M |
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