Facilities are structures that can be built in the Castle Grounds. They are divided into four categories: Production, Adventurer, Dragon, and Decorative. Production facilities provide resources over time. Adventurer facilities boost the stats of adventurers of their respective element. Dragon facilities boost the stats of dragons of their respective element. Decorative facilities are strictly cosmetic.
The Facility Level is the sum of the levels of all facilities, including the Smithy. Increasing the facility level is necessary for increasing the Halidom level.
Facilities can be moved into the Storehouse to make space on the Castle Grounds. All facilities in the Storehouse are inactive and retain their level progress. Note that if a facility has reached its building limit, moving it into the Storehouse does not allow more of that facility to be built.
Facilities are constructed by Smithwyrms, who become occupied during construction. Only two Smithwyrms are initially available. However, a third, fourth, and fifth Smithwyrm can be purchased in the Castle Grounds screen for 250, 400, and 700 
or 
, respectively.
List of Facilities
Production Facilities
Adventurer Facilities