Originally posted by Right Clicker:

Earthworks > stone walls. Raise up the earth around your villa and you're now nice and safe inside. Btw, you should be hunting trolls and have fully upgraded troll armor and fine bow before you go into the swamp.

Have raised the ground around my base, took a lot of stone but it indestructible, it high enough so if a Troll comes a long its just his head that sticks up