The income of this building is one of the listed resources, at random.)
Trivia
Size:
Maximum number per island: 1
This unit is immovable.
Available on these islands:
Strategies
This building is restored from a burned out shell, and cannot be purchased from the store. Once upgraded, there is no going back, so it is strongly recommended that you do not upgrade this building too quickly, nor do you want to upgrade past a resource that you cannot comfortably manufacture.
In higher levels, the most ideal level for this to run is level 8, since the deal costs copper and copper is less needed in most islands (Except for buildings and polunarium processing) and easy to produce (Except is GI adds a resource that costs a lot of copper).
Even though the ideal level is 8 for higher levels, it still depends on how you progressed in the game for you to level up this building (For example, if you have coral enough to upgrade it, but you just got it from safe chests and you are still far from the Coral Mining quest, it is not advised to upgrade it until you got a Coral Mining).
Fishing Kits 
Farming Kits 
seeds or 
Dressing
100
150
2,000
2
12
100
??
175
100
130
100
170
115
220
150
100
