Great minds think alike I guess! I love your take on this mechanic, so polished and I really like the mysterious feel. Really great job, I'd love to chat about your approach to designing your levels for this mechanic :)
I'd like to say everything was planned but the style and levels were mostly happy accidents.
I imagined this type of game having a stone die in a desert and just went with that.
For the levels I placed the block somewhere and moved until I got a six and made that the goal, then I added some trick routes and walls and tested it a few times.
I might have spent the most time on making the rolling work and feel satisfying.