What? I played Diablo 1, it literally had a story? Chris Metzen co-created the setting for the franchise with David Brevik and Bill Roper in 1996. The changes Blizzard wanted made from the original concept of Diablo was to make it real-time rather than turn based and to add multiplayer as part of the publishing agreement. I don’t see anything about a storyline being “forced” on the developers.