This mod adds a massive cave dimension and changes the overworld caves too! With loads more stone types, a few new ores, a new boss, and more dungeons.
To get to the massive cave dimension just make a Bedrock Miner, then right click it on the lowest layer of bedrock in the overworld, then jump into the black portal it makes Make sure you have space in your hotbar for a special item you will be given - you will need it! The bedrock miner also works like a diamond pickaxe
You can right click with the pickaxe on layer 127 in the cave dimension to get back, but BE CAREFULL - put some blocks 2 blocks above the portal in the overworld otherwise you might end up in a loop falling into the portals as soon as you appear. And you may need to bring fire resistance potions for when you return to the overworld, you might appear in lava and need them
Dark stone can be crafted into cobblestone.
There is a boss which looks a lot like mob d from the list of possable mobs to be added in 1.13 (The Phantom won), it drops a Blaze King helmet which is better than diamond, the boss spawns in the cave dimension so be carefull when exploring.
Blaze King stats:
Health: 350
Damage: 7
Attack: fireballs and hitting the player
Rarity: uncommon - and best avoided unless you have good gear
Despawns?: yes
Armor points: 10
Cavepig stats:
Health: 50
Damage: 5
Attack: hitting the player
Despawns?: yes
Rarity: common - but only found on the cave floor
Armor points: 0
Drops pork chops
Jellyfish stats:
Health: 50
Damage: 6
Attack: hitting the player
Despawns?: Yes
Rarity: common, but only in water, and there isn't much water
Armor points: 0
Drops: raw fish
See the images page for some other usfull info: https://www.curseforge.com/minecraft/mc-mods/dreamcrittings-cave-update/screenshots
And if you want you can look at the Planetminecraft page: https://www.planetminecraft.com/mod/cave-update-4704538/
Total mod elements: 185
Made with Mcreator
If you're looking for something like this for 1.16.5 or 1.18.2 then I made a new mod here: https://www.planetminecraft.com/mod/infinite-abyss/ which adds new underground dimensions too, and even uses some of the same textures as this mod.