Avernum 2: Crystal Souls

If you're into classic isometric story driven RPGs like the Ultima series, this one is for you. I really enjoyed the huge world and rich story. Some nitpick about how (un)balanced the hero enemies are, but I'm more into the whole story driven thing anyway, so I didn't notice this as a problem. I guess it has great value for replaying it too, e.g. trying a different party building approach.