This modpack adds mods to improve the cave system, this includes a mod that revamps the caves and also adds better sounds for a more real feeling.
Mods:
Caveroot
Dense Metals
Dynamic Surroundings
Ice and Fire
Inventory Tweaks
Just Enough Items
kjlib
llibrary
Mod Name Tooltip
Optifine
Ore Lib
Ore Spawn
Rouge Like Dungeons
Tree Capitator
Vein Miner
Worley Caves