The game runs fine on my system with a mix of medium and high details. The levels in the demo are all desert levels, so they are obviously a tad on the barren wasteland side and not a good indicator of environment detail. The rest of the graphics are good enough for me, but do leave something to be desired. I suppose that could be because the demo isn't based on final code or content, and maybe it'll look a lot better in the retail game. The shadows are jaggy and ugly, though...I suggest turning them off if you don't want them to cut your eyes.