The document says 1994 and diablo was released 31st of December 1996(https://en.wikipedia.org/wiki/Diablo_%28video_game%29). So it was very delayed. I guess that the game underwent some huge changes to justify this delay.

Some of the changes are described in this chapter of the book "Stay Awhile and Listen": http://www.shacknews.com/article/76406/chapter-8-finale-cond.... The part I found especially interesting was how they changed it from turn-based to ARPG:

> Our company was saying, "We're going to take on this developer, Condor, and we're going to publish their game. It's called Diablo." And for a couple of months we were working on it not knowing that it was turn-based. When it came out that it was turn-based, we said, "No, that sucks."

> We actually took a vote. They said, "Raise your hand if you would buy this game if it were turn-based." I think two people raised their hands. Then they said, "Raise your hand if you would buy this game if it were real-time." Everybody raised their hands. Allen went in and called Dave Brevik and said, "Look, you've got to make this real-time."

Don't forget the addition of Multiplayer, and integration with Battle.net. Cheating was rampant in D1, in any case.

The pitch doc also talks about ever popular roguelike trope of perma-death, it's a heavy pill to swallow for a commercial game in 1994.

Gotta run that BobaFett trainer with the anti-PK mode!