Board Thread:Suggestions forum/@comment-26456694-20161030200412/@comment-25841881-20161102205833

It's not. The only problem you've found is small forts with NPCs exposed to the open air, as people have admitted that castles can have big walls, and it is easy to stop horses from getting onto walls. Here's the thing.. If you don't want people to be able to get in and access the build, why do you need NPCs exposed to the air? Why not have them in buildings with a gate, so only people who can legitimately open the fort's gate - and are people you want in - can access the NPCs? Then anyone who got in while no players were online to stop them can harm the NPCs.