Simulated Universe: Unknowable Domain is an additional gameplay content for Honkai: Star Rail's Simulated Universe. See the Unknowable Domain explained, how to play it, and all the rewards here!

Simulated Universe Guides
Swarm Disaster	Gold and Gears
Divergent Universe	Unknowable Domain

What is Unknowable Domain?

2.6 Simulated Universe Game Mode

Release Date	October 23, 2024

Simulated Universe: Unknowable Domain is an additional game mode within the Simulated Universe introduced in Version 2.6. This Simulated Universe features Scepters and Components that you can use to defeat enemies!

Simulated Universe Guide

How to Unlock Unknowable Domain

Simulated Universe: Unknowable Domain can be unlocked after clearing Simulated Universe - World 5!

Simulated Universe World 5 Guide

Unknowable Domain Exploration Guide

Jump to a Section!
Best Extraploration Alignment	Best Teams

Best Extraploration Alignments

Break Alignment

Break is arguably the best Extraploration Alignment since their Scepters can reduce an enemy's Toughness regardless of their Weakness, making it very useful in stalling the enemy's action.

The Break Alignment can be effective even if you're not using a Break DMG team.

Ultimate or Follow-up ATK Alignment

If you still haven't unlocked the Break Alignment, use other Alignments such as Ultimate or Follow-up ATK. While their Scepters don't have Toughness Reduction, they make up for it by dealing a ton of DMG.

Both of these Alignments are more than enough to take down the earlier Difficulties.

Best Teams

Free-to-Play Team

Main DPS	Support	Support	Sustain
March 7th (Imaginary)	Trailblazer (Imaginary)	Asta	Natasha

This is the best Free-to-play team that can use Break Alignment. Use The Hunt March 7th and the Harmony Trailblazer to deal a lot of Super Break DMG to a Weakness Broken enemy.

Asta and Natasha can support the party by using buffs and healing respectively.

Break Alignment Team

Main DPS	Support	Support	Sustain
Firefly	Trailblazer (Imaginary)	Ruan Mei	Lingsha

Use the Firefly and Trailblazer duo to implant a Fire Weakness onto enemies and deal Super Break DMG. Ruan Mei can increase Break Efficiency and delay an enemy's recovery from Break.

You can use other Break DMG DPS units like Boothill and Rappa for this team. Gallagher is also a viable Break Effect sustain.

Ultimate Alignment Team

Main DPS	Support	Support	Sustain
Acheron	Jiaoqiu	Pela	Aventurine

If you haven't unlocked the Break Alignment, you can use the Ultimate Alignment with Acheron to deal a ton of AoE DMG. Use Jiaoqiu and Pela to implant debuffs and stack up Acheron's Slashed Dream.

For alternatives, you can use any character with a powerful Ultimate such as Argenti or Dan Heng. If you're not using Acheron, you can use Tingyun and Huohuo to regenerate the energy of your DPS.

Follow-up ATK Alignment Team

Main DPS	Support	Support	Sustain
Feixiao	Topaz	Robin	Aventurine

The Follow-up ATK Alignment is also viable if you don't have the Break Alignment. Use Feixiao to deal a lot of single-target DMG to an enemy with her Follow-up attacks. Topaz and Robin can help Feixiao deal more Follow-up Attack DMG.

You can use Dr. Ratio as a great substitute. March 7th (Imaginary) and Moze are also viable Follow-up attack units.

DoT Alignment Team

Main DPS	Support	Support	Sustain
Kafka	Black Swan	Guinaifen	Huohuo

Use Black Swan and Guinaifen to inflict DoTs onto enemies so that Kafka can trigger them with her Skill. Use Ruan Mei if you want the enemies to delay their recovery from Weakness Break.

How to Play Simulated Universe: Unknowable Domain

Unknowable Domain Process Guide

1. Select an Extrapolation Alignment
2. Equip Scepters to Deal DMG
3. Acquire Components and Decision Components
4. Defeat the Final Boss
5. Unlock Buffs, Scepters, and Components in the Cognitive Boundary
6. Unlock Trailblaze Secrets
7. Go Through Conundrum Mode

Select an Extrapolation Alignment

You must form a team and select an Extraploration Alignment before you start an Unknowable Domain run. Extraploration Alignments allow you to get better chances of getting specific Scepters and Components.

For example, if you chose the Ultimate Extraploration Alignment, Ultimate Scepters and Components will have a higher chance of appearing in your runs.

How to Unlock All Extrapolation Alignments

Alignment	How to Unlock
Ultimate	Available at the start.
DoT	Complete Unknowable Domain - 00.
Follow-up ATK	Complete Fading Empire - 01.
Break	Complete Future Rehearsal - 02.

Equip Scepters to Deal DMG

Scepters are items you use during fights that can be activated from certain conditions to unleash powerful attacks. You will get one Scepter at the start of the run.

You can find Scepters in different domains and can only carry a maximum of three Scepters.

Modify Scepters in the Workbench of Creation

Scepters can be modified in the Workbench of Creation to be upgraded. These upgrades include having more Component slots and improved effects in battle.

Acquire Components and Decision Components

You can collect Components that can be placed on your Scepters to boost their effects in combat and increase their activation frequency.

Decision Components provide more powerful effects to your Scepters and can only be obtained by defeating the boss of a Plane. You can only equip one Decision Component on a Scepter.

Combine Low-Tier Components

Lower tier Components with the same icon can be combined to create a more powerful one. Once you've collected three Components of the same icon and rarity, these will merge into a stronger Component.

Overwrite and Synthesize Components

You can use the Workbench of Creation to Overwrite the Components you don't need for better ones, or Synthesize four Components of the same rarity to get one of a higher rarity.

Defeat the Final Boss

Like most Simulated Universe modes, you need to defeat the Final Boss to complete an Unknowable Domain run. Use the Scepters and Components you've collected to take down these powerful bosses.

Unlock Buffs, Scepters, and Components in the Cognitive Boundary

Use your Conjectures you've collected after a Unknowable Domain run in the Cognitive Boundary to unlock permanent buffs, more Scepters, and more Components.

Unlock Trailblaze Secrets

Unlock Trailblaze Secrets simply by clearing all the Unknowable Domain stages to collect rewards such as Stellar Jades and a Self-Modeling Resin.

Unknowable Domain Resets After All Secrets Are Unlocked

After collecting all of the Trailblaze Secrets, The Unknowable Domain will reset after you leave the Simulated Universe and you will start from Difficulty 0 again.

Do note that the Unknowable Domain after the reset will provide 20 Stellar Jades for clearing six Mudanite Assembly stages, so clear it if you want to know the story.

Go Through Conundrum Mode

Similarly to Gold and Gears, you can attempt Conundrum Mode after completing Someone's Mausoleum or Difficulty 5 for the first time. Each level adds modifiers that make your run a lot tougher.

Someone's Mausoleum Guide

Simulated Universe: Unknowable Domain Rewards

Jump to a Rewards Section!
All Rewards	First Time Clearance
Reorganized Model	Trailblaze Secrets
Emulation Record	Battle Pass
How to Clear Mundanite Assembly

All Unknowable Rewards

Unknowable Domain Rewards
Stellar Jade	Relic Remains	Tracks of Destiny
Self-Modeling Resin	Star Rail Pass	Traveler's Guide
Refined Aether	Lost Crystal	Credit

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First Time Clearance Rewards

Stage	Rewards
Difficulty 0	Stellar Jade x30 Credit x22,000 Traveler's Guide x4
Difficulty 1	Stellar Jade x60 Tracks of Destiny x1 Relic Remains x100 Credit x2,000
Difficulty 2	Stellar Jade x60 Star Rail Pass x2 Relic Remains x100 Credit x2,000
Difficulty 3	Stellar Jade x60 Tracks of Destiny x1 Relic Remains x100 Credit x2,000
Difficulty 4	Stellar Jade x60 Star Rail Pass x2 Relic Remains x100 Credit x2,000
Difficulty 5	Stellar Jade x60 Self-Modeling Resin x1 Relic Remains x100 Credit x2,000

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All Reorganized Model Rewards

Order Recomputation Objectives and Rewards
Clear the Simulated Universe: Unknowable Domain's regular stage when all Scepters contain the "Charge" attribute	Stellar Jade x30 Lost Crystal x5 Credit x20,000
Clear the Simulated Universe: Unknowable Domain's regular stage when all Scepters contain the "SPD" attribute	Stellar Jade x30 Traveler's Guide x5 Credit x20,000
Clear the Simulated Universe: Unknowable Domain's regular stage when all Scepters contain the "Ultimate" attribute	Stellar Jade x30 Traveler's Guide x5 Credit x20,000
Clear the Simulated Universe: Unknowable Domain's regular stage when all Scepters contain the "Break" attribute	Stellar Jade x30 Lost Crystal x5 Credit x20,000
Clear the Simulated Universe: Unknowable Domain's regular stage when all Scepters contain the "Follow-up ATK" attribute	Stellar Jade x30 Traveler's Guide x5 Credit x20,000
Clear the Simulated Universe: Unknowable Domain's regular stage when all Scepters contain the "DoT" attribute	Stellar Jade x30 Lost Crystal x5 Credit x20,000
Clear the Fourth Plane at Conundrum Level 1 or higher in Torturous Difficulty using the "DoT" Extraploration Alignment.	Stellar Jade x80 Lost Crystal x5 Credit x20,000
Clear the Fourth Plane at Conundrum Level 1 or higher in Torturous Difficulty using the "Ultimate" Extraploration Alignment.	Stellar Jade x80 Traveler's Guide x5 Credit x20,000
Clear the Fourth Plane at Conundrum Level 1 or higher in Torturous Difficulty using the "Follow-up ATK" Extraploration Alignment.	Stellar Jade x80 Traveler's Guide x5 Credit x20,000
Clear the Fourth Plane at Conundrum Level 1 or higher in Torturous Difficulty using the "Break" Extraploration Alignment.	Stellar Jade x80 Lost Crystal x5 Credit x20,000
Multidimensional Projection Objectives and Rewards
Clear a run at Conundrum Level 1 or higher in Torturous Difficulty.	Stellar Jade x100 Traveler's Guide x5 Credit x20,000
Clear a run at Conundrum Level 2 or higher in Torturous Difficulty.	Stellar Jade x80 Traveler's Guide x5 Credit x20,000
Clear a run at Conundrum Level 3 or higher in Torturous Difficulty.	Stellar Jade x80 Lost Crystal x5 Credit x20,000
Clear the Fourth Plane at Conundrum Level 3 or higher in Torturous Difficulty.	Stellar Jade x50 Relic Remains x30 Credit x20,000
Clear a run at Conundrum Level 4 or higher in Torturous Difficulty.	Relic Remains x30 Credit x20,000
Clear a run at Conundrum Level 5 or higher in Torturous Difficulty.	Relic Remains x30 Credit x20,000
Clear a run at Conundrum Level 6 or higher in Torturous Difficulty.	Relic Remains x30 Credit x20,000
Disordered Trails Objectives and Rewards
Clear Mundanite Assembly a total of 6 times	Stellar Jade x20 Traveler's Guide x6 Credit x30,000
Use Overwrite Component a total of 20 times	Stellar Jade x20 Refined Aether x6 Credit x30,000
Use Component Synthesis a total of 20 times	Stellar Jade x30 Lost Crystal x6 Credit x30,000
Use Scepter Modification a total of 20 times	Stellar Jade x20 Traveler's Guide x6 Credit x30,000
Obtain a total of 20 Components of 3-star rarity	Stellar Jade x30 Refined Aether x6 Credit x30,000
Obtain a total of 20 Scepters of 3-star rarity	Stellar Jade x30 Lost Crystal x6 Credit x30,000
Trigger automatic Component Synthesis a total of 20 times	Stellar Jade x20 Traveler's Guide x6 Credit x30,000
After completing the aforementioned cumulative missions, obtain "Pursuit's End" to be used in the Divergent Universe Collection Display	Pursuit's End

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All Trailblaze Secrets Rewards

Objective	Rewards
1 Secret Unlocked	Stellar Jade x100 Traveler's Guide x5 Credit x40,000
2 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
3 Secrets Unlocked	Relic Remains x50 Refined Aether x5 Credit x40,000
4 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
5 Secrets Unlocked	Stellar Jade x100 Traveler's Guide x5 Credit x40,000
6 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
7 Secrets Unlocked	Relic Remains x50 Refined Aether x5 Credit x40,000
8 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
9 Secrets Unlocked	Stellar Jade x100 Traveler's Guide x5 Credit x40,000
10 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
11 Secrets Unlocked	Relic Remains x50 Refined Aether x5 Credit x40,000
12 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
13 Secrets Unlocked	Stellar Jade x100 Traveler's Guide x5 Credit x40,000
14 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
15 Secrets Unlocked	Relic Remains x50 Refined Aether x5 Credit x40,000
16 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
17 Secrets Unlocked	Stellar Jade x100 Traveler's Guide x5 Credit x40,000
18 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
19 Secrets Unlocked	Relic Remains x50 Refined Aether x5 Credit x40,000
20 Secrets Unlocked	Relic Remains x50 Lost Crystal x5 Credit x40,000
Unlock all Secrets to obtain	Self-Modeling Resin x1 Stellar Jade x160 Credit x40,000

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All Emulation Record Rewards

Scepter Unlock Rewards

Objective	Rewards
10 Scepters Unlocked	Stellar Jade x40
20 Scepters Unlocked	Stellar Jade x40
30 Scepters Unlocked	Stellar Jade x40
40 Scepters Unlocked	Stellar Jade x40
50 Scepters Unlocked	Stellar Jade x40

Component Unlock Rewards

Objective	Rewards
30 Components Unlocked	Stellar Jade x40
60 Components Unlocked	Stellar Jade x40
90 Components Unlocked	Stellar Jade x40
120 Components Unlocked	Stellar Jade x40
150 Components Unlocked	Stellar Jade x40

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Battle Pass Rewards

Objectives	Rewards
Acquire 20 Scepters(s) in Simulated Universe: Unknowable Domain	x1,400
Acquire 100 Component(s) in Simulated Universe: Unknowable Domain	x1,400

You can get 2,800 Nameless EXP if you complete the objectives, which will aid in advancing your Battle Pass to get more rewards!

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How to Clear Mundanite Assembly

Mudanite Assembly can be accessed after collecting all of the 20 Trailblaze Secrets. Once all Trailblaze Secrets have been collected, the Unknowable Domain will reset. Complete the stage on the reset and you can access the Mundanite Assembly.

You can either clear all six Mundanite Assembly stages or clear one Mundanite Assembly stage six times to collect the Stellar Jade rewards.

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Honkai Star Rail Related Guides

Simulated Universe Guide

Simulated Universe Stage Guides

Simulated Universe Guides
World 1	World 2	World 3
World 4	World 5	World 6
World 7	World 8	World 9

Paths and Blessing Guides

All Simulated Universe Paths
Propagation	Preservation	Abundance
Nihility	The Hunt	Remembrance
Destruction	Elation	Erudition

Swarm Disaster Guides

Simulated Universe: The Swarm Disaster Guides
The Swarm Disaster Guide	How to Unlock All Chapters
Communing Trail and Pathstrider Guide	Exploration Guide
How to Clear Difficulty 5

Gold and Gears Guides

Simulated Universe: Gold and Gears Guides
Gold and Gears Guide	How to Unlock All Trailblaze and Aeon Secrets
Neural Network Guide	Dice Customization and All Dice Faces
How to Beat Difficulty 5

Divergent Universe Guides

Divergent Universe: The Human Comedy
Divergent Universe Guide	How to Increase Synchronicity Level
How to Get Weighted Curios	Probability Museum Guide
How to Perform Curio Synthesis	How to Overwrite Weighted Curios
Divergent Universe Curios

Unknowable Domain Guides

Simulated Universe: Unknowable Domain
Unknowable Domain Guide	How to Beat Someone's Mausoleum

Other Simulated Universe Guides

Simulated Universe Guides
List of All Paths	Simulated Universe Events
List of All Curios	Resonance Interplay Guide