La formule utilisée pour calculer la défense du mur est celle ci dessous :
min( 1 , niveau du mur / niveau de l'hôtel de ville ) * niveau du mur * 10
| Niveau de l'hôtel de ville | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | ||
| Niveau du mur | 1 | 10% | 5% | 3% | 2% | 2% | 1% | 1% | 1% | 1% | 1% | 0% | 0% | 0% | 0% | 0% | 0% |
| 2 | 20% | 20% | 16% | 10% | 8% | 6% | 5% | 5% | 4% | 4% | 3% | 3% | 3% | 2% | 2% | 2% | |
| 3 | 30% | 30% | 30% | 22% | 18% | 15% | 12% | 11% | 10% | 9% | 8% | 7% | 6% | 6% | 6% | 5% | |
| 4 | 40% | 40% | 40% | 40% | 32% | 26% | 22% | 20% | 17% | 16% | 14% | 13% | 12% | 11% | 10% | 10% | |
| 5 | 50% | 50% | 50% | 50% | 50% | 41% | 35% | 31% | 27% | 25% | 22% | 20% | 19% | 17% | 16% | 15% | |
| 6 | 60% | 60% | 60% | 60% | 60% | 60% | 51% | 45% | 40% | 36% | 32% | 30% | 27% | 25% | 24% | 22% | |
| 7 | 70% | 70% | 70% | 70% | 70% | 70% | 70% | 61% | 54% | 49% | 44% | 40% | 37% | 35% | 32% | 30% | |
| 8 | 80% | 80% | 80% | 80% | 80% | 80% | 80% | 80% | 71% | 64% | 58% | 53% | 49% | 45% | 42% | 40% | |
| 9 | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 81% | 73% | 67% | 62% | 57% | 54% | 50% | |
| 10 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 90% | 83% | 76% | 71% | 66% | 62% | |
| 11 | 110% | 110% | 110% | 110% | 110% | 110% | 110% | 110% | 110% | 110% | 110% | 100% | 93% | 86% | 80% | 75% | |
| 12 | 120% | 120% | 120% | 120% | 120% | 120% | 120% | 120% | 120% | 120% | 120% | 120% | 110% | 102% | 96% | 90% | |
| 13 | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 130% | 120% | 112% | 105% | |
| 14 | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 140% | 130% | 122% | |
| 15 | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 150% | 140% | |
| 16 | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | 160% | |