Demonic Organ

Demonic Organs in RoS.

Demonic Organs are special materials used to craft the Hellfire Ring. There are three different Demonic Organs in Diablo 3 and four in Reaper of Souls. Each of the Organs is dropped only by certain of the Ubers, the special boss monsters reached via the portals in the Hermit's Shack.

Demonic Organs and all other components of the Infernal Machine are Torment only in D3v2 or Reaper of Souls, and do not exist or function on lower difficulty levels. Higher Torment levels increase the drop rate of keys and organs.

See the Infernal Machine article for full details on how to obtain keys, create Infernal Machines, open the portals to the Ubers, obtain Demonic Organs, and use those to craft a Hellfire Ring. The process is roughly the same in Diablo 3 and Reaper of Souls, though RoS adds a 4th Uber and a 4th Demonic Organ.

Infernal Machine Walkthrough

Here's a quick summary of the steps in this event. See the sections below for full details about everything related to the Infernal Machine.

• Obtain a key from each Keywarden.
  • Diablo 3: Keys found from the Keywardens in Acts 1-3. Infernal Machine plan and/or a random key from the Act 4 keywarden.
  • Reaper of Souls: Keys from Acts 1-4 in RoS, with one key from each Keywarden.
• Craft the keys (one of each required) to create an Infernal Machine.
• Enter the Heretic's Abode in Act One Tristram town.
• Activate the Infernal Machine(s) to open a red portal to one of the Realms.
  • There is only one kind of Infernal Machine in D3, and the portal opened is random. Players are advised to have 3 Infernal Machines to do all three in the same game.
  • There are 4 types of Infernal Machines in Reaper of Souls, so players can open precisely the portal they wish.
• Slay the Ubers in the realm, and cross your fingers for a Demonic Organ to drop along with the other loot.
• Once you have at least 1 of each type of Demonic Organs (3 in D3, 4 in RoS) visit the Jeweler to craft them into a Hellfire Ring.

It is usually necessary to repeat the initial steps multiple times, since keys and organs do not drop every time. Even on Torment 6 they have only a 50% chance to drop. Players can farm for the keys and organs much more efficiently in multiplayer games, both for the faster killing speed and since every player in the game has a chance at each item dropping, and all characters in the game can pass through the same portal(s) to the Uber battles.

Diablo 3 Demonic Organs

• The Writhing Spine drops from King Leoric or Maghda in the Realm of Discord.
• The Devil's Fang drops from Ghom or Rakanoth in the Realm of Chaos.
• The Vengeful Eye drops from Siege Breaker or Zoltun Kulle in the Realm of Turmoil.

All three organs are required to craft a Hellfire Ring in Diablo 3.

Reaper of Souls Demonic Organs

• Leoric's Regret drops from King Leoric or Maghda in the Realm of Discord.
• The Vial of Putridness drops from Ghom or Rakanoth in the Realm of Chaos.
• The Idol of Terror drops from Siege Breaker or Zoltun Kulle in the Realm of Turmoil.
• The Heart of Evil drops from Uber Diablo in the Realm of Fright.

All four organs are required to craft a Hellfire Ring in Reaper of Souls.

Demonic Organ Drop Rates

The same odds apply to Keys from the Keywardens. These figures are identical in D3 or RoS, after D3v2 completely reworked the difficulty system. (In the previous Monster Power system it was possible to get 100% drop odds on MP10.)

• Torment I: 25%
• Torment II: 28%
• Torment III: 33%
• Torment IV: 38%
• Torment V: 43%
• Torment VI: 50%