This is such an amazing entry for the jam. I love how evocative and epic the writing is. The tower itself is also great, just enough vagueness for GM input, while still offering plenty of structure and guidance when needed.
My only criticism is that I wish there was a little more complexity with when the final encounter can happen, since as it stands there's a 1/8 chance that the first room you walk into is the final boss. But it wouldn't be too hard to fix/homebrew on my own. Maybe something like the roll getting an extra +1 per floor (so d8 the first floor, then d8+1 the second, d8+2 on the third, etc), that way you could make the final boss be on rolling a10 or higher, so its possible to encounter him early, but there's still a baseline of a few floors of warm up before the end game.
Don't take the length of my criticism as any indication of how I feel about the submission. Like I said, it is incredibly well made and looks like a hell of a lot of fun. I definitely plan on running it for my group once we finish up our current Cyberpunk campaign.