

Left-click-and-drag to place large sections of moat at a time. When in the Castle view screen, you can place moat tiles from the extra defences area of the defences box to the right of the screen. Smelters do not require troops to operate them. Each completed smelter allows five oil pots to be placed on the castle walls.

To place boiling oil in your castle, you will need to build a smelter this requires iron to build, and needs to be researched via Military, Defences.
STRONGHOLD KINGDOMS SMELTER UPGRADE
Researching Castellation will upgrade your keep defences, while researching Defences allows access to new defensive buildings. How do I gain access to better defences? Otherwise, it automatically orients itself when placed over a wall. You can rotate the gatehouse using the mouse wheel or by pressing the space bar. Building a gatehouse will allow access to your castle and enable you to enclose your keep. There must be a gap in the castle walls to allow access to and from the keep - this can be filled with a gatehouse. Why can't I enclose my keep with castle walls? The castle defences screen allows you to build a castle and place defensive troops. I'm worried about being attacked how do I defend myself?
