There is an average of 1.65 ancient debris blocks per chunk, with a normal maximum of 5. On average, Y-level 15 has the most ancient debris. Up to two blobs may generate per chunk: one blob of 1–4 ancient debris attempts to generate with a periodic normal distribution (similarly to lapis lazuli ore) from levels 8 to 22, and an additional blob of 0–2 ancient debris attempts to generate randomly from levels 8 to 119. Average only.Īncient debris generates in the Nether in the form of blobs. Ancient debris spawn rate per layer Y=15 has the most ancient debris.
