Diablo 4’s next season is called Season of Infernal Chaos and it kicks off on 23 September. Expect new Chaos Armor, build-defining Chaos Perks, Chaos Rifts in Helltide and Nightmare Dungeons, and a reworked Infernal Hordes capped by a new boss: Bartuc, Lord of Chaos. Some changes stick around after the season ends. Others won’t. Here’s the short version, plus UAE timings for Twitch Drops.
Season 10 at a glance
Seasonal systems change, core combat gets new toys, and the story nudges Sanctuary forward.
- Starts: 23 September
- New: Chaos Armor, Chaos Perks, Chaos Rifts
- Questline: meet Shyan of the Viz-Jaq’taar and hunt the Fell Council
- Progression: earn Viz-Jaq’taar Veneration, Infernal Warp for perks
- Big bad: Bartuc, selectable at the end of Infernal Hordes runs
The seasonal quest “Sands of Chaos” begins in Ked Bardu. From there you chase down Chaos Rifts and uncover Mephisto’s fingerprints on Sanctuary again. Seasonal reputation unlocks Perks; materials from Chaos monsters level them up.
Infernal Hordes gets meaner — and Bartuc waits at the end
Infernal Hordes isn’t a side mode now; it’s the season’s engine.
- Chaos Waves: random rule-breaking waves that hit harder but pay more Aether
- Fell Council update: one member acts as Council Speaker with boosted abilities
- Fleeting Hordes: a shorter, four-wave version early in the climb
- Bartuc fight: spend Aether to pick him over the Council; learn his portal patterns; loot drops on the ground on kill
These tweaks push decision-making every few minutes. Chaos Waves spike risk/reward. The door opens faster, the offers between waves were re-balanced, and new Chaos Monsters can grant shrine-like buffs when killed — stackable if you chain kills before the first buff expires. If you want the big drops, opt into Bartuc at the end of a run and manage his teleports and projectile portals.
Chaos Armor and Chaos Perks: how power shifts
Two levers change how you build.
- Chaos Armor: existing Uniques can now drop in other armour slots, roll max power, and carry at least one Greater Affix
- Drop sources: world drops and many activities; guaranteed from Bartuc in Torment III–IV
- Can’t double-equip the same Unique as standard + Chaos version
- Chaos Perks: four tiers (Magic/Rare/Legendary/Unique); equip three non-Unique + one Unique; class-agnostic and class-specific sets; upgrade with Infernal Warp
This is the big playstyle shake-up. A Unique like Fists of Fate can drop as a helm instead of gloves, freeing your glove slot for a different Unique. That opens combos that didn’t exist. Perks then twist skills — some raise output while cutting sustain; others randomise cooldowns or supercharge basics. Theory-crafters eat well this season. Blizzard’s accompanying patch notes also flag Chaos Armor as visually distinct, with higher Bartuc drop chances at higher Torment tiers, and additional Chaos Uniques added ahead of launch.
Chaos Rifts, rewards, and what’s permanent
Rifts spill out of Helltide and Nightmare Dungeons and feed your seasonal grind.
- Chaos Rifts: seal them for reputation, Infernal Warp, XP, gems, and a shot at Chaos Armor on Torment
- Chaos Rift Nightmare Dungeons: tuned to pay like overworld equivalents
- Season Journey: Resplendent Spark plus a new fox pet Pandora for Chapter 6
- Battle Pass Reliquary: free track; Premium options exist (cosmetics)
Some updates don’t end with the season. Permanent to Eternal and Seasonal Realms: Infernal Hordes updates (Chaos Waves, Fell Council changes, Bartuc fight, base offering tweaks), new Uniques for each class, and lair boss invulnerability changes (no invuln until 10 seconds in, shields can be broken to skip phases). Season-only, though: Chaos Perks, Chaos Armor (kept but stripped of powers/appearance after the season), Chaos Rifts, Fleeting Hordes, Viz-Jaq’taar reputation, and the seasonal questline.
UAE timings: Twitch Drops, shop reset, and a quick heads-up
There’s one Twitch Drop window at launch and a shop refresh.
- Twitch Drop: 23 Sept 10:00 a.m. PDT → 26 Sept 10:00 a.m. PDT
- UAE time: 23 Sept 9:00 p.m. GST → 26 Sept 9:00 p.m. GST
- Reward: Hewer’s Halberd cosmetic for Barbarian (watch 2 hours)
- Tejal’s Shop: 23 Sept 12:00 p.m. PDT = 23 Sept 11:00 p.m. UAE (cosmetic sets rotate)
- How Drops work in general and Arabic support on Twitch: see our notes on Twitch Drops Fest
When does Diablo 4 Season 10 start in the UAE?
The season date is 23 September. Blizzard doesn’t list a global launch hour in the blog; we’ve included UAE times only where Blizzard gave exact hours (Twitch Drops, shop).
How do I get Chaos Armor and can I equip both versions of a Unique?
What sticks after the season ends?
Infernal Hordes updates, new Uniques, and lair boss invulnerability changes carry over. Chaos Perks, Chaos Armor powers/appearance, Chaos Rifts, Fleeting Hordes, the seasonal quest, and Viz-Jaq’taar are seasonal only (Chaos Armor items remain but lose their seasonal power/skin).
