I watched Leviathon video and enjoyed it, I remember you recommending to me the second part of d3rlord3 one. I had not watched it because the sky themed one was too big of a tonal shift, but after some time and having forgotten the first part enough, I am actually more accepting of the new part.
Still it lacks heart, feeling much more like it is just a list of builds with the sequence of doors he has to go through. I have just started it — I am on the clay/desert world but I have forgotten already how many worlds have gone, the tree one, the tall rock houses one, and then this if i remember — but i think i am much more accepting of the video for what it is. I hope it is as good as you said (not much but decent)