Going the fantasy way of suggesting games:
A couple of years ago, I fell in love with the Exile-series from Spiderweb. Great immersive hack&slay-rpgs. Check out Avernum I - III, their spiritual children, but beware: They're huge. My third time playing through Avernum III, which I all but knew by heart then, took about 55 hours playing time approximately, and none of it boring.
King Of Dragonpass is *the* game for all Hero Wars and Glorantha fans, and everyone into interactive stories.
I'd suggest Planescape: Torment as probably the best computer-rpg available, but since everyone knows it (or should, at least...)... unbelievable that a company that proved that it could deliver tons of story, highly interesting characters and finally an interaction system that allows you more than the general "Yes, I would love to lick your boots"-, "Now you die scum!"- and "I'll do it, but pay me first"-answers then turned out some disappointing crap like Neverwinternights...
Those are my independent favourites. I am also an avid Morrowindplayer, but that's beside the point.
