Neverwinter Nights 2 is really less a ‘game’ than it is a compendium, or a collection of related items. For some, it's a a single player campaign, while others are more interested in the multiplayer component. The game also includes a world builder and campaign editor, both of which appeal to certain types of players, while others are sure to enjoy the game's dungeon master tool. Different players may want this game for different reasons, much the same way one might purchase the Dungeon Master’s Guide while another would opt for the Player’s Handbook. Both relate to interacting within Dungeon & Dragons, but one book will appeal to those constructing the adventure while the other appeals to those taking part in it. Neverwinter Nights 2 includes bothbooks, as well as everything else one might conceivably need or want while participating as any role involved in a Dungeon & Dragons campaign: you can act as dungeon master, as player, hell you can even just be the host if you want, opening your IP doors up for others to game in the comfort of your bandwidth.