Hi, I am working at new tutorial with attempt to improve it. I aim to have cleaner and less text for user to read.   To this tutorial I have added Market, trading, bartering, rotation of buildings. Any military stuff would be in second part of tutorial, this should be only about economy.   Any suggestions, improvements welcome.   @Nescio I would be glad if you could provide review from language perspective. @Freagarach, @borg- @ValihrAnt @Boudica