This expansion is absoluetley a blast. You start out at the top of a mountain under the guidance of a old mage. From then on you can explore 3 new tilesets and chose from 5 new characters. The only downside is that if you played NWNs on a computer on a G3 you cant play this expansion set. The System Requirrements are:Macintosh computer running OSX v10.2.8 or higher, 450MHz G4 or faster processor (800MHz recommended), 256MB RAM, 32MB or higher (NVIDIA GeForce 2/ATI Radeon recommended) video card, 1.2GB free hard drive space, 8X CD-ROM drive, local area network with TCP/IP protocol or established internet connection for multiplayer (56 Kbps modem or faster required). Well over all if you computer meets those requirments buy this game. If you don't have NWNs yet buy that and this.(and Hordes of Underdark).