The HellScape – Military Dungeondraft asset pack has been updated to include trench warfare assets! Have a free example map, or become a Patron to make your own trenches. You’ll find paths for building your own trench walls, wooden boards, dirt berms and craters.
(It may take a few minutes from the time of this post for the DD assets to upload. More details about what’s new will be located in the Military Pack post.)