Just as a pen-and-paper (PnP) RPG was a new type of game that had evolved from an older type (in this case turn-based, game - board-based strategy games) Neverwinter Nights (NWN), with its built-in toolset and Dungeon Master client, is an evolution of both PnP RPGs and computer RPGs. Indeed, I would contend that it is really a new type of game altogether.