Nox was released in 2000. It got good reviews, but was generally written off as a "Diablo clone." However, I actually liked the game *more* than Diablo. For one thing, the environments were more interactive and varied. Additionally, there was a really cool line-of-sight system.
I think it's really an underrated classic, and still one of the best hack-n-slash games ever made. It would be cool to see it get some recognition (hint hint).
I remember seeing the box in the store, but never picked it up. Reading the wiki article
it looks interesting.