Diablo 4 season 1: Everything we know about Season of the Malignant

Diablo 4 dungeon
(Image credit: Blizzard)

Diablo 4 season 1 has been detailed by Blizzard and I am not prepared for the carnage. Launching on July 20, the Seasonal Realm is opening up to all players who have completed the campaign, and it's set to offer a brand new challenge to overcome. With a horrendous plague spreading across the world, there are new opportunities to grow in power, discover unique items, and test your strength against all new elite creatures. It sounds awesome, and it's only two weeks away!

While we wait for season 1 to launch, Blizzard says that Diablo 4 patch 1.04 will go live on July 6. While it won't be as "chunky" as 1.03, it will introduce a suite of quality-of-life changes, bug fixes, and other new additions – such as the ability for Helltide Chests to drop unique items. Naturally, this will help tide us all over until July 18, when the Diablo 4 season 1 patch goes live ahead of the main release date on the 20th. 

There's a lot of new info to get through, so keep reading to find all the new Diablo 4 season 1 gameplay changes, news, and details that we have uncovered so far. 

Diablo 4 season 1 release date

Diablo 4 dungeon

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Diablo 4 season 1 release date has been set for July 20, 2023. Blizzard is calling this the 'Season of the Malignant'. Set after the events of the core Diablo 4 campaign, where a new corruption starts to spread through the creatures of the world – from beast to human to demon – you'll need to fight back against the Malignant. Remember, you'll need to complete the Diablo 4 campaign before you can jump into the first season. 

Diablo 4 season 1 story

Diablo 4

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The Diablo 4 season 1 story will see you joining forces with a new character, Cormand – a former priest from the Cathedral of Light who finds himself drawn into a new conflict following the conclusion of your fight with Lilith. Blizzard is keen to note that Season of the Malignant isn't a continuation of the main campaign, but rather a self-contained side-quest in the open realm that's set after the campaign. You'll be teaming up with other heroes to destroy a plague which is threatening to destroy Sanctuary. If you join the Seasonal Realm, you'll be able to begin the season 1 story from the moment you reach Kyovashad. 

How to access Season of the Malignant

Diablo 4

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If you want to jump into Season of the Malignant content you'll first need to complete the core Diablo 4 campaign on the Eternal Realm. Once you do that, you'll start to encounter Malignant enemies anywhere in the open world, regardless of whether you decide to buy the battle pass or play in the Seasonal Realm. Naturally, if you want to go all in on the Season of the Malignant, you'll need to create a new character on the Seasonal Realm and head straight to Kyovashad. Thankfully, Blizzard has confirmed that your renown will carry over to your new character – including your unlocked Diablo 4 Altar of Lilith statues, potion charges, skill points, and your Diablo 4 map progress. 

What you need to do before Diablo 4 Season 1

Diablo 4

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Want to get ready for Diablo 4 season 1? Okay, well the first thing you'll need to do is complete the campaign. You won't be able to access any of the new story, mechanics, or items until you do. That isn't all though. Blizzard says that a lot of your progress can carry over from the Eternal Realm to the Seasonal Realm, which ought to be a great way to power level from July 20. Before season 1 goes live, you'll want to collect as many Altar of Lilith statutes and discover as many new locations as you can, as all of that renown you earn will carry across to your new seasonal character. Speaking of progression – starting July 18, you'll want to log into the character that you have progressed the furthest with, as this will trigger a process to ensure that all of your progress will be propagated across your entire account.

Diablo 4 Malignant Hearts

Diablo 4

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Diablo 4 season 1 is introducing a suite of new mechanics, systems, and items – all stemming out of the plague spreading out across Sanctuary. Regardless of whether you are exploring the open world with your original character or with a Seasonal character, you will always have a chance to encounter a Malignant enemy. Defeat it and it will expose a Malignant Heart which you can use a cage of binding on to begin a ritual. This will summon Malignant enemies in the area and a powerful elite which, if defeated, can drop a new item called a caged heart. 

The Diablo 4 caged heart is essentially a replacement for gems. These can be socketed into gear and offer an enormous amount of power – so much so that the Diablo 4 team has joked that "broken builds" can be generated by being smart with the new item. There are 32 new Malignant powers which can be unlocked; each Malignant Heart you collect will have a specific color coding, with each corresponding to a socket color that appears on gear collected on the Seasonal Realm. There are three socket colors but four different colored hearts, with the rare fourth being omni-color – as in, it can be socketed in any item and offer specific power sets that will change the way you pilot your character. 

Diablo 4 malignant tunnels

Diablo 4

(Image credit: Blizzard)

Malignant Hearts are a key component of the Diablo 4 season 1 experience and Blizzard promises that there will be a way to farm them. All across the world of Sanctuary will be alternative dungeons called Malignant Tunnels. If you complete these unique areas you'll encounter an Outgrowth at the end – use a crafted invoker on the Outgrowth and it'll summon an Elite Malignant enemy. Kill that and you'll get a colored Malignant Heart back and, better yet, the invoker can be crafted to correspond to one of the specific color sets of the hearts, letting you target farm to a degree.   

Diablo 4 season 1 new items

Diablo 4

(Image credit: Blizzard)

Alongside the Diablo 4 Malignant Hearts and Malignant gear, Blizzard is also introducing a suite of new items to the game as part of season 1. You should expect to encounter new Unique items, new bosses, and new legendary gear and, better still, this will appear across both the Eternal and Seasonal Realm. Oh, and better still, this will all be available in the game from July 18, where all of this new content will go live alongside quality-of-life changes and balance updates ahead of season 1 launching on July 20. 

How the battle pass works

Diablo 4 Seasons

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The Diablo 4 battle pass is set to go live on July 20 alongside the Season of the Malignant. Blizzard has been keen to stress that there will be 27 free tiers to the battle pass which will allow you to earn cosmetics and Smoldering Ashes – a new resource which can be applied to the Season Blessing system, enabling you to invest in Seasonal Realm boosts such as more XP or improved Elixir effectiveness. It's worth stressing that the entire Season 1 story and mechanics can be enjoyed without purchasing the Season 1 battle pass. If you do decide to purchase the battle pass, you'll find 90 tiers of cosmetics, resources, and other items to bestow upon your new character on the Seasonal Realm. 

You'll be able to track progress (regardless of whether you buy the battle pass or not) as part of the Season Journey tab in the UI, which will break down progression into seven chapters, with each containing a number of objectives. You'll only need to complete a subset of these objectives to advance to the next chapter, with item rewards and Legendary Aspects handed out along the way. You should also expect to unlock new emotes and horse armor through the battle pass – as well as cosmetics which are class-agnostic, barring the transmog weapons which are class-specific. 


While you wait for the season 1 to launch, why not learn how you can get the Diablo 4 Prime gaming rewards

Josh West
UK Managing Editor, GamesRadar+

Josh West is the UK Managing Editor of GamesRadar+. He has over 10 years experience in online and print journalism, and holds a BA (Hons) in Journalism and Feature Writing. Prior to starting his current position, Josh has served as GR+'s Features Editor and Deputy Editor of games™ magazine, and has freelanced for numerous publications including 3D Artist, Edge magazine, iCreate, Metal Hammer, Play, Retro Gamer, and SFX. Additionally, he has appeared on the BBC and ITV to provide expert comment, written for Scholastic books, edited a book for Hachette, and worked as the Assistant Producer of the Future Games Show. In his spare time, Josh likes to play bass guitar and video games. Years ago, he was in a few movies and TV shows that you've definitely seen but will never be able to spot him in.