maths452 wrote:Also the problem does persist within various characters (Not only the barb)
I have the same problem, have you found a way to open it?
How to open king koth? You need the Dark Portal spell that you get from destruction Summoner in arcane sanctuary. Cube it with your class charm.
To open the portal you must kill koric I believe and use the dark portal spell. If you kill koric and then die before you open the portal, you need to make a new game. Just kill all 3 then use the portal.