Just an overview of various features of Dungeondraft that you might not be aware of.
0:00 - Intro
0:07 - Circular walls with the Wall Tool
1:18 - Multiselect with the Scatter Tool
2:44 - Using and making custom tag sets
3:56 - Drawing color shapes
4:33 - Draw long building shadows
5:22 - Copy-pasting between different maps
6:00 - Drag-and-dropping PNGs directly into the map
6:23 - Where to find backups
