Dark as Hell

This pack is made specifically to be difficult and i would not suggest it to mod pack newcomers.

it features :

Nox a great difficulty increasing pack which changes the behaviour of every mob in the game,

True darkness to allow the light level to truly drop to 0 completely cutting of vison in caves and on new moon nights

and lastly craftweaker for some recipe editing to make getting day one armour a lot more difficult to encourage travel and exploration.

it also boasts a good handful of custom structure mods to make finding loot a better experience and to help you not get smited day one.

Overall this Fabric based pack is a new much harder way to play the game and changes most combat and exploration oriented actives in some way or another.