Building Upgrades:
* The warehouse
* Icon Hotspots (for adventurers) Boat Upgrades:
* Rams/Figureheads
* Rudders
* Deck Items
* Hulls
* Any unit (apart from the low level captains and crew members, which are free)
Building Upgrades:
* The warehouse
* Icon Hotspots (for adventurers) Boat Upgrades:
* Rams/Figureheads
* Rudders
* Deck Items
* Hulls
* Any unit (apart from the low level captains and crew members, which are free)