Fortification (research)
Fortification
| Guild | 3 |
|---|---|
| Max | 15 |
Fortification is a research line.
Every wall, gun and work on the shore stands 10% more hull per level.
Needs
Navigator's Guild 3. Runs to level 15.
Cost by level
| Level | Cost | Time | Opens |
|---|---|---|---|
| 1 |  300  300  100
|
5 min | |
| 2 | 600 600 200
|
13 min |  Tollgate
|
| 3 | 1,200 1,200 400
|
31 min | |
| 4 | 2,400 2,400 800
|
1.3 hours | |
| 5 | 4,800 4,800 1,600
|
3.3 hours |  Harbour Chain
|
| 6 | 9,600 9,600 3,200  6  4
|
8.1 hours |  Coastal Fortress
|
| 7 | 19,200 19,200 6,400 12 8  6
|
20 hours | |
| 8 | 38,400 38,400 12,800  3 24 17 12
|
2.1 days | |
| 9 | 76,800 76,800 25,600 5 40 28 20
|
5.3 days | |
| 10 | 153,600 153,600 51,200 9 64 45 32
|
13 days | |
| 11 | 307,200 307,200 102,400 14 90 63 45  4  2
|
19 days | |
| 12 | 614,400 614,400 204,800 21 120 84 60 8 4
|
26 days | |
| 13 | 1,228,800 1,228,800 409,600 30  5 150 105 75 16 8
|
36 days | |
| 14 | 2,457,600 2,457,600 819,200 40 10 190 133 95 32 16
|
51 days | |
| 15 | 4,915,200 4,915,200 1,638,400 55 18 240 168 120 64 32
|
71 days |