Pretty nice house ,what I would add is a fence around the perimeter so that the gate makes sense but everything else is very well I like it ,many thanks! .
Bigger description, and more images of everything. Like the idea though, maybe a small quest to get it, someone shouldn't be able to just "get" a fort. Also, the fence problem sounds like an issue with the navmesh. Make sure that the navmesh does not go "through" the fence, there should be a gap in the navmesh where the fence it.
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