Diablo IV Season 10 opens the Season of Infernal Chaos

Diablo IV Season 10, the Season of Infernal Chaos, opened on September 23, 2025. Blizzard built the season around deliberately unstable character powers and a revised Infernal Hordes activity, giving seasonal heroes several connected routes to pursue Chaos rewards.

Diablo IV Season 10: confirmed details

Chaos Perks modify class play with powerful trade-offs, while Chaos Armor allows selected unique powers to appear in unusual equipment slots. Chaos Rifts open across Sanctuary and Nightmare Dungeons. Infernal Hordes gained Chaos Waves, stronger council encounters and a confrontation with Bartuc, Lord of Chaos, after players earned sufficient progress.

What changes for players

The central attraction is combination-building. Moving a unique effect to another slot can release an equipment conflict, while Chaos Perks encourage players to accept a cost for a larger payoff. The Horde revisions provide a repeatable place to test those builds, but success still depends on damage, survival and selecting offers that fit the current character.

Availability and lasting context

Seasonal systems were tied to the Season 10 calendar and should not be assumed to remain unchanged in later Diablo IV seasons. The official 2.4 patch notes document subsequent numerical fixes and adjustments. Eternal-realm players should verify which mechanics survived after the season before planning a permanent build around them.

This report records the release state at publication. Later patches can alter balance, access or individual systems without changing the documented launch history. Announced features, paid additions and community expectations are kept separate from content that was actually released.

Sources: official information or tournament records. Factual claims were checked against the linked record; interpretation is our own.

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