Rune is a port of the PC game, and the graphics show. The enviroments all have a very plain, low-end PC look to them. The monsters, on the other hand, look pretty cool. Especially the Dark Vikings, but this is ruined by the slow down that pops up whenever there are more than three enemies on the screen. These shortcomings are only made worse by the fogging that is used to try and hide them. Nothing ever seems to stand out, except for the water, but this is mainly because it's poorly done and glows, for some reason or another. While the graphics aren't bad, they just fail to stand up to what we know the PS2 can do.
One thing that should be given credit is the great modeling of Ragnar. While his animations are limited to the normal walks, jumps and climbs seen in other games, they do look good. It's also fun to note that as Ragnar gains weapons, you see them holstered all over his body. Seeing a bad-ass Viking in full armor with weapons hanging all over his body is pretty intimidating.
Sound is one of the real high points of Rune. All of the music has the 'big sound' you would expect from a game with Vikings. Music is used very well in trying to underscore parts of Ragnar's adventure. It's used very sparingly in some low-key areas and just explodes with a very full sound when the action picks up. The voice acting is also done very well. All of the characters have their own voice, and it's neat to overhear soldiers voicing their displeasure at having to work for Conrack as you sneak through the city. I can honestly say that other than wanton bloodletting, the sound was what kept me hooked to the game.