Quests (Diablo I)

Quests in Diablo I are almost all optional in nature; Archbishop Lazarus and Diablo are necessary to complete in order to beat the game. Other common traits is that a quest often becomes active when the player enters the level directly preceding the level where the quest takes place. For example, the Anvil of Fury is found in the Caves on level 10, but is accessible from Griswold once the player reaches level 9.

Diablo Quests

Level	Name	Objective	Quest Group
2	The Butcher	Kill the Butcher.	1
2	Poisoned Water Supply	Cleanse Tristram's water supply.	2
3	The Curse of King Leoric	Kill the Skeleton King.	2
4	Gharbad the Weak	Kill Gharbad the Weak.	1
4	Ogden's Sign	Find Ogden's missing sign.	1
5	The Magic Rock	Bring Griswold the Magic Rock.	3
5	Valor	Find Arkaine's Valor.	3
6	The Chamber of Bone	Clear out the Chamber of Bone.	-
7	Halls of the Blind	Clear out the Halls of the Blind.	3
8	Zhar the Mad	Kill Zhar the Mad.	4
9	Black Mushroom	Bring Adria a black mushroom.	4
10	Anvil of Fury	Bring Griswold the Anvil of Fury.	4
13	Warlord of Blood	Kill the Warlord of Blood.	5
14	Lachdanan	Save Lachdanan from his curse.	5
15	Archbishop Lazarus	Kill Archbishop Lazarus.	-
16	Diablo	Kill Diablo.	-

Quest Group: One quest from each group is always left out of each game, and each new game started with a character changes what quests appears. This means that one can play a game and neither come up against the Butcher or the Skeleton King. The final two quests involving Lazarus and Diablo are always present in every game, as is the Chamber of Bone quest.