Mods bro. Dem mods. Combat mods (when you hit you actually hit, advanced block timing, not just pasive block, stances etc...), quest mods, faction mods, weapon and armor mods, graphic mods, city mods, flavour mods, companion mods, landmass mods, alternative main quest mods, creature mods, enviromental/weather mods, survival mods, texture mods, magic system mods, stealth mods, skill mods, playable races mods, prostitution mods.
Gotta install them all. As many as you can without breaking the game.