Alkeari

Stop guessing which Y level to strip-mine. Scan the terrain you have already got, then look any ore up in JEI, EMI or REI and read its real depth distribution for your world, your seed and your modpack.

Vanilla's tangle of noodle caves is gone. In its place the underground is solid rock cut by eight hand-designed cave systems, each with its own shape, biome rules and reward for finding it.

FTB Ultimine skips blocks harder than the one you clicked, and charges a point of durability for every block it breaks. Ultimine Unchained mines the whole shape your tool can handle and caps what one operation costs you.

See the world before you make it. Genesis puts a live biome map, seed tools and world pre-generation on the Create New World screen, so you can compare seeds and pre-build the terrain before you ever spawn in.