Castle builder

Castle builders (farmers, carpenters, stonemasons, and blacksmiths) are NPC castles on the world map in a wide range around great cities. Fighting them is similar to attacking other player.

• You can attack castle builders alone, or you can rally other house members. Upon victory, you may receive a resource payout. Attacking a castle builders breaks truce and initiates fervor.
• Their castles automatically produce resources, and they also gather resources on the world map.
• Builders are defended by a small number of troops (compared to castle protectors)
• Builders do not actively attack players.

Not all builders and protectors are equal. NPC castles around low-star great cities have fewer and weaker troops than high star NPCs. Also, as the kingdom gets older, NPC castles "level up", gaining access to higher tier troops.