The most metal bar we could find in Klagenfurt. - (October 2011)- But the prices are very high. Anyways we liked it so much that we've spent nearly the entire evening there. The menu included mead, small(0,3L) lager and big (0,5L) wheat beer. The rest was too expensive too order for a poor student. There was a big screen in the center of the bar, playing metal videos all the time. (Sabaton, Metallica, general...) you can always bring in your music wishes. Metalheads and goths everywhere.
In general nice and cosy, chilled atmosphere, but be sure to have enough cash in your pockets