As I've said on the download page it's not set at the beginning so it doesn't explain a lot and is actually a little different from how the rest of the game is structured, it might feel more like a walking simulator at first. The reason I put out a demo showing off this part and not the earlier parts is because I was still ironing out a lot of aspects in the game's overworld and didn't think it was ready to show off but I wanted to put out a demo so people could actually try the game. The first dungeon I had made I basically completely scrapped as I didn't think it utilized the game's mechanics well enough and was overall kind of boring in design.
While I had the basic layout for demo done a while ago, I had several systems to implement and bugs I still needed to fix and the whole process ended up taking weeks longer than I anticipated it would. Although now that I have most of that taken care of, I think finishing the rest of game won't be quite as difficult(Hopefully). Below are the initial concept sketches I used to make the demo, some areas have been changed around a bit and not everything is marked.
