Arena Rewards (source)

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Quest Rewards (source)

(Mayor)Thieves Hideout: {good} or {excellent} Class-suited item; or a {good} longsword for many classes
(Mayor)Warg Problem: {good} or {excellent} Class-suited item
(Mayor)Haunted House: Staff of Dispel Evil
(Mayor)Royal Crypt: Mithril Chain Mail of Bilbo
(Inn)Old Man Willow: Elemental Ring or Charm
(Inn)Dark Elven Lords: The Phial of Galadriel
(Inn)The Cloning Pits: {special} Class-suited item
(Inn)The Old Castle: {good} rare-base, device, or {special} Class-suited item

(Thieves' Guild)Tengu and Death Swords: Ring of Protection, Elemental Charm, or Dagger of Westernesse
(Thieves' Guild)The Mimic's Treasure: Ring of Protection or Amulet of Trickery
(Castle)Vapor Quest: Rod of Detection
(Castle)The Rise and Fall of Micro$oft: Ring or Amulet of Defender
(Castle)Doom Quest II: Staff of Healing

Orc Camp: a Cloak of Stealth
Doom Quest I: Elemental Ring or Charm
The Spawning Pits: Balance Dragon Scale Mail

The Sewer: Feanorian Lamp
Logrus Master: Rod: Chaos Strike
The Vault: n/a (Sting is a guaranteed spawn in the level)
The Barrow Downs: Discount at Library, Beastmaster, and Weaponmaster (Cloak of Merry is a guaranteed spawn in the level)
Assault on Montsalvat: Hell Harness
Killing Fields: Potion of Life
Eric's Stronghold: Potion of Augmentation

Node of Sorcery: Grimoire of Power
Node of Chaos: Armageddon Tome
Node of Nature: Nature's Wrath

Dungeons, Depth Ranges, Masters, and Rewards (source)

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