For those who want more level and an improved fighting system:
www.nexusmods.com
The description says:
I find the game to be way too easy even on "very hard" mode so I've figured out how to change that. For now there are six individual mods that modify different values. I want to keep any changes in separate packages so people can choose what they want.

Damage Scaling and Balance (Formerly Level Scaling)
Set multipliers to damage for NPCs and the player, as well as other difficulty adjustments such as Stamina use - configurable in game.

The description says:
I find the game to be way too easy even on "very hard" mode so I've figured out how to change that. For now there are six individual mods that modify different values. I want to keep any changes in separate packages so people can choose what they want.