The first thought, that came to my mind, while I’ve chosen to write a new Quest-related article, was ‘where would I start from’… from scratch by searching the MPQ-Archive for the sound files? It was in that exact moment, that the memory supplied me with the right piece of information “You’ve already read an extensive text concerning them by a person under the nickname of LemmingofGlory, so go search the TheDark-Forums for the link”…looking at it again, it was clear, that if there’s any writ, that I can base my work on, then it’s clearly this one. You’ve the distinction between Quests\Tasks, the Quest-Template(Trigger\Gist\Reward) giving you the idea of the Quest and the transcripts of the related sound files with some useful notes. So, rather than creating an alternative I meant to expand this wonderful contribution by adding details from the other Diablo-Versions (+Hellfire) and mentioning possible interpretations, which do either appear under Additional Information in the Template or Notes in between Npc-speeches or after them.
Decide for yourself, if I’ve managed to do both LemmingofGlory and the Quest-Topic justice, but remember it really was the intention :)

This is a short introduction about the quest section. Here we will give you basic information and some technical data about the quests.

• Quest Types
  First of all, there are two kinds of quests. Quests, which were discovered while examining unused (in most cases*) sound files or movies and the ones that do only exist as texts within the code of the Diablo-Versions.
  
  * actually some were used (PrDemo\Beta), but do not appear in the Retail-Version anymore. Furthermore a distinction was made between those that weren't integrated and several others, which are earlier, sometimes totally different versions of present quests.


• Timeline
  Some of the NPC's speeches contain information regarding when a certain quest should have taken place in other cases logical conclusions helped to find the answer, that's why a partially reconstructed timeline is presented here:
  

Part I:
-The Butcher
Well, it wouldn't make sense if you weren't receiving the information regarding the properties of the chamber directly after being there and facing the decoration made of corpses.
-The Butcher's Chamber

Part II:
-Map of the Stars (read Wirt's quest-related speech)

Note: You'll find the map quite early in the game, but the aligning of the stars will definitely not take place immediately, which means that there will be enough time to finish the following quests and hopefully even the last one until the stars align

-Lost Treasure (read Pepin's speech to find out why)
-Infestation of the Worms (again Wirt's speech is the key)
-Black Mushroom