Huge fortifications are needed to protect against huge weapons! Additional stone walls with spikes around the Fort will mitigate the attacks of enemy siege units. Let your foe know what a truly unassailable fortress looks like.
| Level | Scrolls | Precious Dust | Time | Requirements | Influence | Recovering after siege | Set a trap | Offense Against Enemy Siege | Enemy Siege Offense |
| 1 | 83 500 | 250 | 122w 1d 00h 00m 00s> 2 Year(s) | Trap Workshop 1, Killer Trap II 1 | 13M | 1d 00h 00m 00s |  500 | 2% | 5% |
| 2 | 110 000 | 350 | 168w 5d 12h 00m 00s> 3 Year(s) | Trap Workshop 2, Killer Trap II 2 | 13M | 1d 00h 00m 00s | 500 | 4% | 10% |
| 3 | 145 000 | 505 | 245w 12h 00m 00s> 4 Year(s) | Trap Workshop 2, Killer Trap II 3 | 13.5M | 1d 00h 00m 00s | 500 | 8% | 17% |
| 4 | 195 000 | 770 | 374w 1d 00h 00m 00s> 7 Year(s) | Trap Workshop 3, Killer Trap II 4 | 13.5M | 1d 00h 00m 00s | 500 | 12% | 26% |
| 5 | 270 000 | 1.25K | 600w 4d 00h 00m 00s> 11 Year(s) | Trap Workshop 3, Killer Trap II 5 | 13.5M | 1d 00h 00m 00s | 500 | 18% | 40% |
| 6 | 380 000 | 2.1K | 1 013w 2d 00h 00m 00s> 19 Year(s) | Trap Workshop 3, Killer Trap II 6 | 13.5M | 1d 00h 00m 00s | 500 | 25% | 55% |
| 7 | 550 000 | 3.7K | 1 797w 2d 12h 00m 00s> 34 Year(s) | Trap Workshop 3, Killer Trap II 7 | 14M | 1d 00h 00m 00s | 500 | 35% | 75% |
| 8 | 800 000 | 6.9K | 3 351w 4d 12h 00m 00s> 64 Year(s) | Trap Workshop 3, Killer Trap II 8 | 14M | 1d 00h 00m 00s | 500 | 45% | 100% |
| 9 | 1 200 000 | 13.5K | 6 570w 3d 12h 00m 00s> 125 Year(s) | Trap Workshop 4, Killer Trap II 9 | 14M | 1d 00h 00m 00s | 500 | 60% | 135% |
| 10 | 1 850 000 | 28K | 13 541w 1d 00h 00m 00s> 259 Year(s) | Trap Workshop 4, Killer Trap II 10 | 14.5M | 1d 00h 00m 00s | 500 | 75% | 175% |
| 5.58M | 57.33K | 27 784w 4d 12h 00m 00s> 532 Year(s) | 136.5M |
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