Name of a D & D style of board game?

Spencer Heidtbrink: Heroscape is what you are thinking of. There are more recent options, like Tomb, Descent (which is out of print in First Edition, but just released 2nd Edition), and several board games actually set in a D&D location, such as Castle Ravenloft.

Ignacio Imbier: You're thinking of Heroscape, which is unfortunately out of print and hard to find.