On further reflection, most of them are single player / multiple character, excluding ones that are very far from any roguelike influence. Actual multiplayer that still have much resemblance to roguelikes (especially the turn-based nature) are harder to find (IIRC, Neverwinter Nights might qualify, though largely through the influence of roguelikes back on D&D, since it was a fairly direct translation of then-current D&D.)