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The Infernal Machine is an [[end game]] quest feature introduced in the [[v1.0.5 patch]]. The feature was teased preThis multi-patch in several developer blogs <ref>[http://diablostage event allows players to find keys, which can be used to open red portals to special boss fights.incgamers.com/blog/comments/diablo-3-patch-1-0-5-sneak-peek Patch 1.0.5 Sneak Peak] - Blizzard CMThose bosses can drop special monster organs, 13/09/12</ref> and interviews<ref name=ign>which can be crafted into the legendary [http://uk.ign.com/articles/2012/09/17/diablo-iii-patch-105-the-two-biggest-features-detailed Interview[Hellfire Ring] - IGN, 17/09/12</ref> <ref name=gnn>[http://diablo.incgamers.com/blog/comments/more-new-details-on-v1-0-5 Interview] - Gnn.Gamer.com.tw, 18/09/12</ref>, which gave only vague details and hints about the content and creation of the feature.

==First DescriptionQuick Summary==

The first word 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 came in a Patch 1.0.5 Sneak Peek developer blog post on September 13, 2012 <ref name=blog>[http://us.battle.net/d3/en/blog/7155880/Patch_105_Sneak_Peek-9_13_2012 Blog Update] - Blizzard, 13/09/12</ref>. The brief quote is below:

<blue><b>New Event: # Obtain a key from each Keywarden and the Infernal Machine</b><br>plan.The Infernal Machine is # Use the keys to open a device that will allow level-60 players red portal to battle “uber” versions one of some of Sanctuary’s most nefarious bossesthe three Realms. While # Slay the rewards for defeating these special uber bosses will be great, some assembly is requiredin the Realm to earn one of the three demon organs.# Craft all three organs into a Hellfire Ring.</blue>

More information was released in a pair of developer interviews with [[Jay Wilson]] and [[Wyatt Cheng]]Note that steps 1-3 must be repeated multiple times, since you must create at least three red portals to obtain all three demonic organs. Furthermore, posted unless you are playing on IGN<ref name=ign/> Monster Power 10, the keywardens do not always drop keys and gnn.gamer.com.tw<ref name=gnn/>. As this is only available on the [[PTR]] expect that things may change before [[Patch 1.0.5]] rolls out on uber bosses do not always drop the live serversdemonic organs.

To unlock the Infernal Machine players have to gather 3 keys The four keywardens and a plan from all four acts by killing the Key Wardens. (An even longer and more involved process than Diablo 2′s {{iw|Pandemonium_Event Pandemonium Event}}.)planwarden are:

* The [[Key Wardens always appear of Destruction]] will drop from [[Odeg the Keywarden]] in Act I - Fields of Misery* The [[Key of Hate]] will drop from [[Sokahr the Keywarden]] in an Act II - Dahlgur Oasis* The [[InfernoKey of Terror]] game but it is not guaranteed they will drop what you need.from [[Xah'Rith the Keywarden]] in Act III - Stonefort* The Blacksmithing Plans will drop from [[Nekarat the Keywarden]] in Act IV - Silver Spire Level 1

However, you '''can''' guarantee a drop by utilising {| class="wikitable"|-! Key of Destruction! Key of Hate|-| [[Monster PowerFile:Odeg.jpg|300px]]| [[File:Sokahr the keywarden. Each monster power level gives a 10% drop rate, therefore Monster Power 10 will give you a drop rate jpg|300px]]|-| Odeg in the [[Fields of 100%. FinallyMisery]], you need to have five stacks of Act 1| Sokahr in the [[Nephalem ValorDahlgur Oasis]] in order for the keys or plan to drop. , Act 2 The drops required to assemble the machine are found in:|}

The Keys and Plan are Bind to Account so you can not trade for them. You can have more than 1 of each key at a time, but each key is consumed by the crafting process, so you will need multiple copies of each key to build the multiple Infernal Machines required to explore each portal area and gather all the materials required to craft the [[Hellfire Ring]].

==Build Building the Infernal Machine==

[[File:Icon portal device.png|left]][[File:Heretics abode door.jpg|thumb|100px|Doorway to Hell]] Once you have the three keys and the infernal machine plan visit the [[Blacksmith]]. He needs to be level 10 to craft the machine for you. He will charge you recipe, and this costs 12,000 goldper craft. He will craft the portal device for you, This creates a [[Portal Device]] which will sit appears in your backpack character's inventory and can be carried around until you decide to use it.

To use the device join a game at the Act 1 quest [[Return to New Tristram]] ([http://diablonut.incgamers.com/quest/return-to-new-tristram db]) and locate [[Brother Malachi the Healer]] in the north east of Tristram. The house behind him has a boarded up door, smash it down which is normally unclickable. With the Portal Device his door will light up as clickable and enter lead into the [[Heretic's Abode]].

Right Once you're inside the house, right click the device Portal Device in your backpack and inventory. This spawns a red portal that will spawn. This will lead take you to one of the three realms special Realms where you will face must battle two Uber bosses you have fought beforeat once. Upon death, one of them *may* drop the special monster organ which is required to craft the [[Hellfire Ring]].

:Each realm contains two bosses you must fight at the same time. These bosses are all familiar monsters from elsewhere in the game, but in this battle they are greatly buffed in power and boast some new abilities. Blizzard estimates that they are approximately as difficult as Diablo himself, on Inferno difficulty. * The [[Realm of Discord ]] - [[King Leoric]] and [[Maghda]].:* The [[Realm of Chaos ]] - [[Ghom]] and [[Rakanoth]].:* The [[Realm of Turmoil ]] - [[Siegebreaker_Assault_Beast|Siege Breaker]] and [[Zoltun Kulle]].

The Bosses will special uber bosses drop loot but they like normal elites, and also have a chance of dropping components needed to drop the monster organs that are required to craft a special ring, The the Hellfire Ring. The components are:  :* Writhing Spine drops from [[King Leoric]] or [[Maghda]]:* Devil's Fang drops from [[Ghom]] or [[Rakanoth]]:* Vengeful Eye from [[Siegebreaker_Assault_Beast|Siege Breaker]] or [[Zoltun Kulle]]

[[File:Icon hellfire ring.jpg|left]]You can buy the Hellfire Ring plan from [[Squirt the Peddler]] in Act 2 for 2 million gold. Take the plan to your [[Jeweler]] who needs to be level 10 to learn it. Once learned he will need all three of the above components and 50,000 gold to craftone [[Hellfire Ring]].

He can craft one of four varieties of the ring where one of the affixes will focus on is guaranteed to spawn with +170-200 to a single attribute, either Strength, Dexterity, Intelligence or Vitality. The full ring stats are as follows: : Increase Bonus experience by 35%: Chance to launch an explosive ball of Hellfire when you attack (the proc on this has been greatly reduced since the PTR launched): 4 random properties: 170-200 Intelligence, Strength, Dexterity or 100 Vitality (you choose which one)

* The ring is account bound and therefore can not be sold or traded however it can be [[Salvaged]]. <ref>[http://diablo.incgamers.com/?p=179942 Salvaging the ring] - Blizzard CM, 05/10/12</ref>