Uses NeoForge's add_features biome modifier to inject extra ore passes into every #minecraft:is_overworld biome without touching any biome JSONs. Because it's a biome modifier (not a JSON override), it stacks on top of exosphere and everything else cleanly.
Extra veins added per chunk (on top of what already generates):
| Ore | +veins | Vein size | Y range | Notes |
|---|---|---|---|---|
| Coal | +4 | 17 | full height | |
| Iron | +5 | 9 | full height | |
| Copper | +3 | 20 | -64 to 160 | |
| Gold | +2 | 9 | -64 to 100 | |
| Diamond | +2 | 8 | -64 to 16 | 50% air-discard |
| Redstone | +2 | 8 | -64 to 16 | |
| Lapis | +2 | 7 | -64 to 64 | 50% air-discard |
| Certus Quartz | +4 | 9 | -64 to 100 | AE2 ae2:certus_quartz_ore |
Important: This only affects newly generated chunks. Existing chunks need to be reset or explored fresh.

