Diablo 3 Season 37 release date and all known features

Diablo 3 Season 37: The Forbidden Archives is around the corner and is set to bring back some of the game's most beloved themes. Season 37 will go live on December 5, 2025, at 5 PM (PST/KST/CST). In this season, players can experiment with builds like never before.

In this guide, we will break down everything about Season 37, from seasonal themes to rewards and conquests.

Diablo 3 Season 37 seasonal theme: The Forbidden Archives

Season 37's core mechanic will revolve around the artifact called Kanai's Cube (Image via Blizzard Entertainment)

In this season, you can revisit the power of Kanai’s Cube by removing specific category restrictions. You can be completely flexible with your gear slots and combine all three slots with legendary powers from any category. This is different from the regular game, where you can equip one legendary power in each of the weapon, armor, and jewelry slots.

This effect is very much like the experiments Zoltan Kulle once practiced, pushing the limits of the Kanai’s Cube. This will allow you to craft experimental builds across every class in Diablo 3 and create new build benchmarks in every class.

Diablo 3 seasonal cosmetic rewards

Like previous seasons, Season 37 will rotate previous seasonal rewards, which players might have missed the first time around. In Season 37, you will be getting cosmetics from Seasons 13 and 25, along with the Conqueror Set.

All returning rewards in Season 37

Season 37 will be rotating some of the old cosmetics and loot from previous seasons (Image via Blizzard Entertainment)

Conqueror Set helm and shoulders
Imperius-themed portrait frames
Blaine’s Bear Pet: It’s the blood-covered bear companion.

If you manage to complete the Season Journey and go through The Lords of Hell and finish the Season 37 Guardian Journey, you will get:

Pane of Tristram Portrait
The Dark Lordling Pet

Completing the Season Journey will reward you with special pets and skins (Image via Blizzard Entertainment)

So if you are a completionist and a collector of unique skins, this season will grant you another chance to collect any item you might have missed in previous seasons.

Also Read: Best Diablo 3 solo classes, ranked

Season Journey rewards in Diablo 3 Season 37

If you have played and completed the past few seasons of Diablo 3, you have acquired extra stash tabs. Similarly, in Season 37, you can get an extra stash tab via the Season Journey by completing the following challenges at the Conqueror tier:

Complete a Torment XIII Rift in under 5 minutes
Complete Greater Rift Level 60 solo
Kill Greed on Torment XIII
Kill Cydaea on Torment XIII in under 15 seconds
Reforge a Legendary or Set item
Augment an Ancient item with a Level 50 or greater Legendary Gem
Level three Legendary Gems to 55
Complete two Conquests

So if you are running out of stash tabs, this is one of the ways you can get one in Season 37. Just complete all the abovementioned tasks in Diablo 3, and you will automatically unlock a new stash tab.

Diablo 3 Season 37: Season Conquests

Seasonal Conquests return with fun and exciting modifiers to use in your dungeon runs (Imager via Blizzard Entertainment)

Season 37 will be bringing back some of the classic Conquest mechanics from previous seasons. Players can then utilize them to customize how the gameplay works in Dungeons and Greater Rifts.

Every returning Conquest mechanic in Diablo 3 Season 37

1) Speed-based conquests

Sprinter
Speed Racer

2) Greater Rift mastery

Divinity
Lionhearted

3) Cursed chest challenges

Curses!
Stars Align

4) No set items equipped

The Thrill
Super Human

5) Set Dungeon mastery

Masters of the Universe
Masters of Sets

Also Read: Diablo 3 Classes tier list

Diablo 3 Season 37: Haedrig’s Gift Class Sets

Season 37 will also reward you with three Haedrig's Gifts for completing specific chapters of the Season Journey (Image via Blizzard Entertainment)

If you complete Chapters 2, 3, and 4 of the Season Journey, you will be rewarded with three Haedrig’s Gifts. These gifts grant you guaranteed class sets. Maximize the rewards by opening all three gifts for a specific class, as you will receive the full set.

All sets included in Haedrig’s Gifts of Season 37

Barbarian: Might of the Earth
Crusader: Thorns of the Invoker
Demon Hunter: The Shadow’s Mantle
Monk: Monkey King’s Garb
Necromancer: Grace of Inarius
Witch Doctor: Raiment of the Jade Harvester
Wizard: Firebird’s Finery

The freedom of buildcrafting using the Kanai’s Cube mechanic stands out in Diablo 3 Season 37. This means more specialized builds will appear when the new season goes live in December.

Check out our other guides related to the game:

Edited by Adarsh J Kumar