Curious about how you can farm up a Diablo 3 infernal machine? Read our latest guide to get the scoop on how to get uber keys, make infernal machines, where to use them, and what rewards they’ll yield.
Hey there fellow Nephalem! Welcome back to another exciting article from your favorite gaming blog. Today, we’re diving into the world of Sanctuary once again and exploring one of Diablo 3’s most enthralling end-game systems – the infamous Infernal Machine.
If you’ve been hacking and slashing your way through Diablo 3 like a true champion, then you’re probably no stranger to the addictive gameplay loop that keeps us coming back for more. The game offers numerous challenges, but for those seeking an extra level of difficulty and even greater rewards, it’s time to turn our attention to the Infernal Machine system.
The Infernal Machine is a unique event within Diablo 3 that allows players to face off against powerful Uber Bosses in otherworldly realms. Not only do these encounters provide heart-pounding action, but they also grant access to crafting materials required for creating some of the game’s most potent items: Hellfire Rings and Hellfire Amulets. So strap on your gear and prepare yourself as we delve into where and how to use these mysterious contraptions known as Infernal Machines.
What Is A Diablo 3 Infernal Machine?

Before we jump into using the Infernal Machines, let’s break down how to get our hands on these cool gizmos. We’ll take a look at where you can find the components to make an infernal machine in Diablo3, and what kinds of machines there are in-game.
Where to get the keys for infernal machines?
To obtain an Infernal Machine, you’ll need to hunt down four Keywardens scattered across Acts I-IV. These fearsome foes hold the keys (pun intended!) to unlocking your Infernal adventures. Here’s where you can find each Keywarden:
- Act I – Odeg the Keywarden: Fields of Misery
- Act II – Sokahr the Keywarden: Dahlgur Oasis
- Act III – Xah’Rith the Keywarden: Stonefort
- Act IV – Nekarat the Keywarden: Gardens of Hope 2nd Tier

Once you’ve defeated a Keywarden, they have a chance to drop a unique key corresponding to their respective act. Be warned though; higher difficulty levels yield better chances of obtaining these elusive keys.
Types of infernal machines in D3
Now that you’ve got your keys, it’s time to forge them into one of four different types of Infernal Machines by combining them at The Blacksmith:
- Infernal Machine of Bones (Key of Destruction + Key of Hate) – Realm of Discord
- Infernal Machine of Gluttony (Key of Destruction + Key of Terror) – Realm of Chaos
- Infernal Machine of War (Key of Hate + Key of Terror) – Realm of Turmoil
- Infernal Machine of Evil (all three keys) – Realm of Fright
Each type corresponds to a specific realm housing powerful Uber Bosses just waiting for a showdown with eager adventurers like yourself.
Using the Infernal Machines: Unlocking Realms and Boss Encounters

Alright, fellow demon-slayers, now that you’ve got your Infernal Machines crafted and ready to go, it’s time to put them to use. Let’s go right ahead and answer the question at hand – where do you use the infernal machines? To access the realms they unlock, you’ll need to make your way to the Heretic’s Abode in New Tristram. This inconspicuous little hut might not look like much at first glance, but trust us – it holds some of the game’s most intense battles.
Once inside the Heretic’s Abode, right-click on an Infernal Machine in your inventory to activate a portal leading to its corresponding realm. Be warned: once you enter the realm, there’s no turning back until you either defeat the Uber Bosses or taste bitter defeat yourself.
To help you prepare for these epic encounters, here are a few quick tips:
- Team up! Although it’s possible to solo these encounters (you brave soul), bringing friends along for the journey not only makes it more manageable but also way more fun.
- Make sure your gear is up-to-date and optimized for your character build. These bosses don’t play around!
- Keep an eye on boss mechanics; each encounter is unique and may require different strategies or movement patterns.
Now that you’re armed with this knowledge, it’s time to face off against those fearsome Uber Bosses and claim victory (and some sweet d3 loot) in their respective realms!
Rewards From Ubers & Infernal Machines In Diablo 3
You’ve battled your way through hordes of demons, faced off against menacing Uber Bosses, and emerged victorious. Now, it’s time to reap the rewards for all your hard work!
When you defeat an Uber Boss, they have a chance to drop rare and valuable crafting materials specific to their realm. These materials are crucial for creating two of Diablo 3’s most powerful end-game items: Hellfire Rings and Hellfire Amulets. Here’s what each item has to offer:
- Hellfire Ring: This beast of a ring boasts a hefty bonus to your primary stat (Strength, Dexterity, or Intelligence) and provides a unique proc effect that engulfs enemies in a blaze of hellfire.
- Hellfire Amulet: Equally impressive as its ring counterpart, the Hellfire Amulet grants immunity to one type of elemental damage while also offering an additional passive skill from your class.
Both the Hellfire Ring and Hellfire Amulet can be crafted at The Jeweler using the respective crafting materials dropped by Uber Bosses in each realm. The addition of these items together with other powerful gear like primal ancients will undoubtedly boost your character’s capabilities as you take on even more challenging content and push further into end-game builds.
Closing Thoughts
And there you have it, fellow Nephalem – your comprehensive guide to Diablo 3’s Infernal Machine system. As an essential part of the game’s end-game content, mastering the art of using Infernal Machines can significantly enhance your overall experience and give you a leg up in conquering Sanctuary’s most powerful foes.
Now that you’re armed with all the knowledge you need, it’s time to embark on your journey through these treacherous realms and face off against their formidable Uber Bosses. So gather your friends, fine-tune your gear, and get ready to take on some of the most challenging encounters Diablo 3 has to offer.
From all of us here at IGN, we wish you luck in your battles against these nightmarish adversaries. And as always, stay tuned for more gaming tips, tricks, and guides from your favorite online gaming blog. Happy demon-slaying!