If you skip any quest, you may still come back later at your leisure to finish the quest for its reward. Other quests, marked optional, produce distinct rewards instead of story progression. Those quests, and items used in those quests, are marked mandatory below. Story progression: Certain key Diablo 2 quests must be completed in order to advance through the game’s story. This Diablo 2 quests guide offers a sequence of quests and quest items, with notes about areas associated with quests, and interesting details about those areas.
1.2.6 Tal Rasha’s Tomb and Horadric Staff.1.2.5 Horazon’s Journal and The Summoner.1.1.4 The Countess (The Forgotten Tower).1.1.3 Deckard Cain (The Search for Cain).1.1.2 Blood Raven (Sisters’ Burial Grounds).