Fortification/Examples
Castle Ubent
Level 5 to Level 6
The stronghold currently has a fortification type of Fortress (5). That means you need 29 "blocks" of improvement in order to raise it to the next level. 19 blocks have already been constructed.
Each block will cost 115 gold to construct. In addition, 44 units of wood and 102 units of stone are required for the construction (again, per block).
Total cost of upgrade: 3,335 gold
Maintenance cost at level 3: 12.5 gold per percent.
Level 6 to Level 7
The stronghold currently has a fortification type of Citadel (6). That means you need 44 "blocks" of improvement in order to raise it to the next level.
Each block will cost 136 gold to construct. In addition, 51 units of wood and 121 units of stone are required for the construction (again, per block).
Total cost of upgrade: 5,984 gold
Maintenance cost at level 3: 16.5 gold per percent.
Siver
Level 3 to Level 4
The city currently has a fortification type of Keep (3). That means you need 12 "blocks" of improvement in order to raise it to the next level.
Each block will cost 98 gold to construct. In addition, 50 units of wood and 59 units of stone are required for the construction (again, per block).
Total cost of upgrade: 1,176 gold
Maintenance cost at level 3: 6 gold per percent.
Level 4 to Level 5
The city currently has a fortification type of Stronghold (4). That means you need 17 "blocks" of improvement in order to raise it to the next level.
Each block will cost 110 gold to construct. In addition, 42 units of wood and 94 units of stone are required for the construction (again, per block).
Total cost of upgrade: 1,870 gold
Maintenance cost at level 4: 9 gold per percent.
Aquitain
Level 1 to Level 2
The townsland currently has a fortification type of Palisade (1). You need 5 "blocks" of improvement in order to raise it to the next level.
Each block will cost 64 gold to construct. You can build up to two blocks per day (one per turn).
Total cost of upgrade: 320 gold
Maintenance cost at level 1: X gold per percent.
Akesh Temple
Level 7 to Level 8
The stronghold currently has a fortification type of Citadel (7). You need 63 "blocks" of improvement in order to raise it to the next level.
Each block will cost 112 gold to construct. You can build up to two blocks per day (one per turn).
Total cost of upgrade: 7,056 gold
Maintenance cost at level 7: X gold per percent.
Dark Citadel
Level 8 to Level 9
The stronghold currently has a fortification type of Citadel (8). You need 84 "blocks" of improvement in order to raise it to the next level.
Each block will cost 88 gold to construct. You can build up to two blocks per day (one per turn).
Total cost of upgrade: 7,392 gold
Maintenance cost at level 8: X gold per percent.