This project was planned/started more than half year ago?.. Well, spent some time and here is some fun. Peter2008 have contributed to project release at some point.
A lot of enemy troops will come to kill you.
From 4 side they may come, from one side they wasnt coming...
In early start you will not going to sleep for invasions. You going straight to action.
-you can choose or to make a hole in your wall and surround it by troops or you may send troops from one wall to other in defending your fortress.
-use massively slingers, mangonels, ballista, fire.
-Trading here is not going to be your main income. Few resourses only to trade. Look for high taxes.
-Be careful of fire. Maybe other events even.