Last night I had a dream I was playing Shattered Pixel Dungeon, only with a weird trinket I don’t remember the specifics of, and one other feature that was actually fairly interesting to me.

Some floor tiles, including entire rooms, were light blue glass. Each tile would get progressively cracked each turn the player or a mob stood still (not sleeping) on it, or an item was thrown on it. Bombs immediately destroyed all glass panels in the vicinity, as did wand of blast wave. Destroyed panels were permanently converted into chasm tiles.

Was this ever an actual mod? The images in my mind of how this worked are extremely vivid.