I do not even ever remember playing this game. It is on my list of PSN trophies. I don't remember it. What game is this??????

A classic, and one of the best games ever made.
Influenced most of the looter type games we see nowadays, and untill Path of Exile, this was the one game everything in the genre got compared to.

I've played it since 2001, and will continue till I drop dead.