Hardercraft adds way much more dimensions to make Minecraft way much harder, this mod also adds more mobs, that can one hit you if you have no armor, but don,t worry, you will just see this mobs if you search them in their respective dimension. Hardercraft also add more ores, which you need to search in all the dimensions to create an armor of those ores, some which are:
Golderite 
Celestial 
Infernal 
This mod is still in development, and soon will be updated!
The Golden's Hardercraft Team
