Ah, I see. I never would have guessed the project's ores and caves had used the same process. Cellular automata for terrain generation was all the rage back in the day when I first got into game dev; nowadays, though, the hot thing seems to be so-called "wave function collapse." Of course, the latter might not be entirely relevant for this situation, I just wanted to mention it while we were on the topic in general. Love this stuff!