It's long, thick and full of breaches. Get stone blocks and repair it to defend your city.
Defense Bonus
The City Wall has no job of its own. Its productivity factor produces a defense bonus that benefits all defenders during a monster raid. The higher the building level, the greater the bonus, and the more easily your city survives an attack.
Repair After an Attack
Despite the name, the wall itself is not repaired with stone blocks. A lost defense instead raises your city's devastation level, which is brought back to zero through a general repair order. How quickly that order progresses depends on the Building Guild's productivity factor, not on the City Wall itself.
Construction Costs and Productivity per Level
The difficulty factor matches the value your city currently uses (default 100%). Enter your own value here to see your city's actual construction costs. The calculation happens only on this page in your browser and does not change anything about your city.
| Level | Wood Plank | Stone Block | Workload | Productivity Factor |
|---|---|---|---|---|
| 1 | 600 | 20,000 | 20,000 | 1.00 |
| 2 | 650 | 20,500 | 20,500 | 1.10 |
| 3 | 620 | 20,200 | 20,300 | 1.20 |
| 4 | 680 | 21,000 | 21,000 | 1.30 |
| 5 | 650 | 20,800 | 20,800 | 1.40 |
| 6 | 700 | 21,500 | 21,500 | 1.50 |
| 7 | 670 | 21,200 | 21,300 | 1.60 |
| 8 | 720 | 22,000 | 22,000 | 1.70 |
| 9 | 690 | 21,800 | 21,800 | 1.80 |
| 10 | 1,500 | 40,000 | 40,000 | 1.90 |
| 11 | 800 | 22,000 | 22,200 | 2.00 |
| 12 | 850 | 22,500 | 22,500 | 2.10 |
| 13 | 820 | 22,200 | 22,300 | 2.20 |
| 14 | 870 | 23,000 | 23,000 | 2.30 |
| 15 | 840 | 22,700 | 22,800 | 2.40 |
| 16 | 900 | 23,500 | 23,500 | 2.50 |
| 17 | 870 | 23,200 | 23,300 | 2.60 |
| 18 | 930 | 24,000 | 24,000 | 2.70 |
| 19 | 900 | 23,700 | 23,800 | 2.80 |
| 20 | 3,000 | 50,000 | 50,000 | 2.90 |
| 21 | 3,200 | 51,000 | 51,000 | 3.00 |
| 22 | 3,300 | 52,000 | 52,000 | 3.10 |
| 23 | 3,400 | 53,000 | 53,000 | 3.20 |
| 24 | 3,500 | 54,000 | 54,000 | 3.30 |
| 25 | 3,600 | 55,000 | 55,000 | 3.40 |
| 26 | 3,700 | 56,000 | 56,000 | 3.50 |
| 27 | 3,800 | 57,000 | 57,000 | 3.60 |
| 28 | 3,900 | 58,000 | 58,000 | 3.70 |
| 29 | 4,000 | 59,000 | 59,000 | 3.80 |
| 30 | 5,000 | 60,000 | 60,000 | 3.90 |
| 31 | 5,200 | 61,000 | 61,000 | 4.00 |
| 32 | 5,300 | 62,000 | 62,000 | 4.10 |
| 33 | 5,400 | 63,000 | 63,000 | 4.20 |
| 34 | 5,500 | 64,000 | 64,000 | 4.30 |
| 35 | 5,600 | 65,000 | 65,000 | 4.40 |
| 36 | 5,700 | 66,000 | 66,000 | 4.50 |
| 37 | 5,800 | 67,000 | 67,000 | 4.60 |
| 38 | 5,900 | 68,000 | 68,000 | 4.70 |
| 39 | 6,000 | 69,000 | 69,000 | 4.80 |
| 40 | 7,000 | 80,000 | 80,000 | 4.90 |
| 41 | 8,000 | 90,000 | 90,000 | 5.10 |
| 42 | 9,000 | 100,000 | 100,000 | 5.30 |
| 43 | 10,000 | 110,000 | 110,000 | 5.50 |
| 44 | 11,000 | 120,000 | 120,000 | 5.70 |
| 45 | 12,000 | 130,000 | 130,000 | 5.90 |
| 46 | 13,000 | 140,000 | 140,000 | 6.10 |
| 47 | 14,000 | 150,000 | 150,000 | 6.30 |
| 48 | 15,000 | 160,000 | 160,000 | 6.50 |
| 49 | 16,000 | 170,000 | 170,000 | 6.70 |
| 50 | 17,000 | 180,000 | 180,000 | 6.90 |