


Infernal Machines only drop on the Torment difficulties. Players without Reaper of Souls will only be able to make a version of the Hellfire Ring. Once a player has collected all 4 demonic organs they can be crafted into a Hellfire Ring or a Hellfire Amulet by the Jeweler. These Ubers have a chance (increasing with difficulty level) to drop a Demonic Organ.

The Machines are used to open red portals to special dungeon areas where Ubers, super powered versions of certain quest bosses, must be defeated. Now, the Keywardens drop the machines directly. Prior to patch 2.3, the Keywardens would drop keys and the player would need one of each to craft one machine. The Infernal Machine is an end-game quest feature introduced into Diablo 3 in the v1.0.5 patch and changed in Patch 2.3.
