What is the title of this Gaming Novel?

I read this novel a while back from wuxiaworld. I will describe it as accurately as possible although I might confuse some instances with other novels, but probably not. Here goes...

•He was an expert gamer in the present (got screwed?) that somehow went back in time (become strong for revenge), so he's back to lv1 (sort of like The King's Avatar, but not really).

•He knows many secrets to the game which gave him a very big head start. (cant remember if its the launch of the game or not...)•He crafted ?something? which sold for a high price (he then sold the recipe for a higher price after a time before it became obsolete.) (sort of like overgeared.)•There's a famous female character (rich and/or beautiful) but he hardly pays her any notice. She didn't take notice of the MC at first as well.•MC befriended some random people for a dungeon which they later placed first. (I think they chose hard mode, everyone else chooses normal mode.)•Nobody could finish the dungeon because of....traps, or unmapped. But since he is actually from the future, he knows the dungeon and how to finish it.•MC became somewhat popular after they placed first in the dungeon so the famous female character invited MC to help with dungeon. (sort of like The King's Avatar, again.)

•He told some of his friends how to level up and left them there, his friends were hunted by his enemies (other players) and he came to help.•He attacked a town full of PKs and criminal NPCs. (with an army?)