I like how over the top 100d6 feels, along with how it diminishes. It's a crazy cool idea. My only issue is the minor one that to do the 100d6 pretty much requires an electronic tool. Part of the appeal of the game is its analog and somewhat meditative nature. Again, a minor issue, though.
See also... https://chandlerprall.github.io/Physijs/examples/jenga.html
Viewing post in Dice substitute for Jenga towers
Don't get me wrong, the tower has its own specific feel rooted in the physical existence and order of the object and the tactile skill involved, and the feeling that you fucked up when it falls—these are meant as substitutes when a tower is impossible or impractical. I feel like the 100-die mechanic probably works better in sci-fi, or any setting where numbers are more significant, since you can tie it into a % value (% oxygen remaining, % of humanity left after alien attack, % chance of survival derived by AI etc.).
That digital tower is cool, but unfortunately suffers from the same kind of slidy, bouncy instability I've seen in a lot of 3D stuff. Here's one attempt I made, screenshotted after 2 pulls:
I'm offering online alternatives for the die, the cards, and the tower in my submission, and this was the tower alternative I went for. It's not perfect at all - the physics make the tower likely to fall very quickly, compared to a physical one - but I figure any (free) digital option is better than none!