For Ludum Dare 36! The theme is "ancient technology", though it didn't exactly take center stage here.
Tiny puzzle-platformer with some less common mechanics.
Once again, to fit within the compressed size limit, I had to strip out all the comments. :(
Original source here: https://c.eev.ee/isaacs-descent/isaac-pristine.p8
I had to strip all the comments to fit under the compressed size limit, but the original cart/source is available.
Also, merch, wow!