, I looked into the kenshi folder to find the crash dump files and i had a file that said crash dump failed. I have no idea what caused it the game was running fine. I think the walls might have something to do with it as i was half way done building a wall around my town; or the path finding as lots of NPC's were doing that rapid turn on one spot thing. It could be something completely different though...... Who knows?
Edit: forgot to attach files