I could care less about multi-player, actually
I prefer BG over most DnD because, well, it has a better story line, and it was created by the great wizzards of Black Isle!
Planescape: Torment
Icewind Dale
Icewind Dale II
Baldur's Gate
Baldur's Gate II
Those are all Black Isle games I'd recomend. Never Winter Nights and Campions of Norrah aren't really true DnD either... They try to copy the oh so popular DnD elements, but they definately
can not express them as well as Black Isle has. Before you say anything, I
have played both, and I didn't like them
nearly as much as any Black Isle game I've ever played.