What Diablo had were randomized dungeons, fantastic graphics (for the time), and a lack of competition for a few years so it could claim to be the first. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
Bzzzzz!! Wrong. Sword of Fargoal had it all; literally decades before Diablo.
Just thought I would point that out! <img src="/ubbthreads/images/graemlins/mage.gif" alt="" />