The finest scientific minds are working to increase the chances of your siege machines remaining intact during battles. Conduct this Study to increase your siege defense.
| Level | Rations | Planks | Cast Iron | Marble | Drafts | Time | Requirements | Increased Siege Defense | Power |
| 1 | 260 | 380 | 260 | 780 | 400 | 2w 4d 00h 00m 00s | 0 | 22M | |
| 2 | 355 | 520 | 355 | 1.1K | 565 | 3w 2d 00h 00m 00s | 1 | 22M | |
| 3 | 495 | 720 | 495 | 1.5K | 790 | 4w 3d 00h 00m 00s | 1 | 22.5M | |
| 4 | 700 | 1.05K | 700 | 2.1K | 1 150 | 6w 1d 00h 00m 00s | 2 | 22.5M | |
| 5 | 1.05K | 1.5K | 1.05K | 3.1K | 1 600 | 8w 6d 00h 00m 00s | 2 | 22.5M | |
| 6 | 1.55K | 2.25K | 1.55K | 4.55K | 2 300 | 13w 2d 00h 00m 00s | 3 | 23M | |
| 7 | 2.35K | 3.4K | 2.35K | 6.95K | 3 300 | 20w 5d 12h 00m 00s | 4 | 23M | |
| 8 | 3.6K | 5.25K | 3.6K | 11K | 4 750 | 33w 6d 12h 00m 00s | 7 | 23.5M | |
| 9 | 5.75K | 8.35K | 5.75K | 17.5K | 6 850 | 57w 4d 12h 00m 00s> 1 Year(s) | 10 | 23.5M | |
| 10 | 9.3K | 14K | 9.3K | 28K | 10 000 | 101w 6d 00h 00m 00s> 1 Year(s) | 14 | 24M | |
| 25.41K | 37.42K | 25.41K | 76.58K | 31.71K | 252w 5d 12h 00m 00s> 4 Year(s) | 14 | 228.5M |
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