A non-rare guard tower will spawn 1 guard per 10ql up to 5 guards. Rare guard towers will spawn 1 additional guard per rarity as long as the quality requirement is met; as per the table below.

To move a guard tower:

1. Use GM Tool to get the Wurm ID of the guard tower. Right click the Wurm ID and copy it into the clipboard.
2. Kill all guards (do not destroy them).
3. Pick up the tower quickly using #loadItem <paste wurmid>.
4. Drop the tower at its new location.

Wait to see if the guard tower spawns new guards. If the guard tower becomes bugged (won’t spawn guards), copy the tower and drop the new one and destroy the old one.

There are four “guard tower” types in the Create list. I'll be updating their descriptions with pictures here at some point. In the interim, I do know that 2 is the spiked one, 3 is the round Mol Rehan tower, and 4 is the wooden Freedom tower.