Tier Quests

Tier Quests were introduced in the Stygian Abyss expansion. There are three NPC's that use this system:

The way it works is you have to complete a certain amount of quests in a tier to gain access to the quests in the next tier. All of these quests are repeatable but you must wait a certain amount of time after completing a quest before you can get it again.

Tier Quests Cooldown Time
Percolem the Hunter Thepem the Apprentice Zosilem the Alchemist
Tier 1 Requirement None None Complete 5 of Thepem's Tier 2 quests. 30 minutes
Tier 1
Tier 2 Requirement Complete 5 of Percolem's Tier 1 quests. Complete 5 of Thepem's Tier 1 quests. Complete 10 of Zosilem's Tier 1 quests. 2 hours
Tier 2
Tier 3 Requirement Complete 10 of Percolem's Tier 2 quests. - Complete 20 of Zosilem's Tier 2 quests. 24 hours
Tier 3 -