This is a step by step tutorial to create an isometric projection map of an underground dungeon location.
This is the finished illustration.
I always start with a crude sketch
Then I add the main linework and features.
I added a dropdown portray of the ground. The other options i to draw the walls but that sometimes makes the drawing to blotted.
Now I added doors
Now I add furniture here
I added rocky details to the drop down floors to give it depth.
Now I do the same with all the floor and walls in the bottom room to give it texture and depth.
I added a margin and a secret room and a deadly trap in the second chamber.
Final details like number tags and a shaded layer to give some sense of light.
Thanks for reading this far ! it's a pleasure to share my work process and pictures/drawings.
Have an awesome day.