Blizzard has officially announced the start of Diablo IV’s ninth season, titled "Sins of the Horadrim," which will begin on July 1, 2025. The update brings a new storyline, enhanced dungeons, a spell customization system, and major changes to the endgame content.

Seasonal Storyline

Players will embark on an adventure called "The Embers Yet Smolder" alongside the druid Bryonna to uncover the truth about Donan’s legacy and stop Astaroth, who has defiled the ancient Blood artifacts. The seasonal story will reveal new details about the Diablo universe and offer a deeper dive into the Horadrim’s heritage.

Horadrim Magic System

Players will be able to create unique spells using a new system based on three elements: catalyst, infusion, and up to three arcana. This allows for crafting unique combinations of effects and tailoring magic to their own playstyle.

Horadrim Vaults and New Nightmare Dungeons

Inside the familiar Nightmare dungeons, players can now find Horadrim Vaults — separate, miniature rooms with rare rewards. Additionally, the dungeons have received ongoing updates:

• New modifiers (affixes)
• The "Escalating Nightmares" system, consisting of a series of connected challenges
• Added bosses Astaroth and Amalgam at the highest difficulty levels

Permanent Game Improvements

The update introduces not only seasonal content but also permanent changes:

• New dungeon types and mechanics
• Mouse and keyboard support on consoles
• New unique items for all classes

Rewards and Cosmetics

Each class will receive an exclusive unique item, for example:

• Mountain God’s Hooves for the Barbarian
• Glowworm of Decay for the Druid The battle pass will include mounts, gear, cosmetics, and premium rewards. New store items will become available on July 1 at 12:00 PM PDT / 3:00 PM EDT / 9:00 PM CEST / 10:00 PM Kyiv time.

Technical Update

Diablo IV now supports NVIDIA DLSS 4 with Multi-Frame Generation, improving performance and graphics smoothness on supported systems.

On July 1, Diablo IV will receive a massive update featuring a new story campaign, spell customization, more challenging dungeons, and a host of permanent improvements. This is the biggest update since the game’s launch, perfect for both newcomers and veterans. Don’t miss the season start and prepare for the challenges of the Horadrim.