A second developer diary video for Diablo 3 has made its way online, providing another retrospective look at the development process of one of the most hotly anticipated games in recent times. Like the first clip, part two takes us back over a year ago, this time to April 5th 2011 which was three weeks before Blizzard kicked off their internal beta testing process for the game.

Blizzard's Jay Wilson, Christian Lichtner and Jason Regier discuss racing the clock to fit as many features in as possible, how they process the enormous amount of fan feedback and requests, and how much sleep they regularly get when excitedly working on the game. Watch the video embedded below.

Diablo III is due on May 15th 2012 for Windows PC.