Updated October 6, 2026
.webp "Space Marine 2 Chaos Siege: Can You Unlock Chaos Relic Armour?")
No. Chaos Siege does not currently provide a separate way to unlock Chaos Relic Armour in Space Marine 2.
The existing Chaos Relic Armour progression remains tied to Eternal War. If you were hoping the new Chaos-focused PvE mode would let you earn the Chaos armour sets without playing PvP, Chaos Siege does not currently replace that progression.
There is, however, an important change in Warhammer 40,000: Space Marine 2 Patch 15: kill assists now count toward the Chaos Relic Armour Ordeals.
That makes the existing requirement more forgiving, but it does not move the armour unlock into Chaos Siege.
📋 Table of Contents
- Can Chaos Siege Unlock Chaos Relic Armour?
- How Chaos Relic Armour Is Actually Unlocked
- What Patch 15 Changed
- Do Chaos Siege Matches Count Toward Chaos Relic Armour?
- The Best Way to Work on Chaos Relic Armour
- Chaos Siege vs Eternal War for Chaos Relic Armour
- Will Chaos Siege Get Its Own Armour Progression?
- FAQ
- Bottom Line
- Related Guides
Can Chaos Siege Unlock Chaos Relic Armour?
No. Chaos Siege does not currently provide a separate way to unlock Chaos Relic Armour in Space Marine 2.
The existing Chaos Relic Armour progression remains tied to Eternal War. If you were hoping the new Chaos-focused PvE mode would let you earn the Chaos armour sets without playing PvP, Chaos Siege does not currently replace that progression.
There is, however, an important change in Warhammer 40,000: Space Marine 2 Patch 15: kill assists now count toward the Chaos Relic Armour Ordeals.
That makes the existing requirement more forgiving, but it does not move the armour unlock into Chaos Siege.
How Chaos Relic Armour Is Actually Unlocked
Chaos Relic Armour is a set of Chaos-themed cosmetic rewards connected to the Eternal War progression system.
The original Chaos Relic Armour requirement was 9 kills in more than 9 Eternal War matches for the class being played. Patch 15 later changed the Ordeals so that kill assists also count.
The important point is that simply playing a Heretic Astartes in Chaos Siege does not give you another progression route for these existing armour sets.
If your goal is specifically to unlock Chaos Relic Armour, Eternal War is still the mode you need to use.
Does the class matter?
Yes.
The Chaos Relic Armour progression is associated with the class being played, so you should use the class whose Chaos armour you are trying to unlock rather than assuming progress will automatically transfer between classes.
This is particularly important if you are working through several Chaos armour sets.
What Patch 15 Changed
Patch 15 made one significant improvement to the Chaos Relic Armour grind:
Kill assists now count toward the relevant Ordeals.
That means you don't have to personally secure every qualifying elimination for your contribution to matter.
Why the assist change matters
In Eternal War, you can contribute substantial damage to an enemy without getting the final kill. Previously, that could make the armour requirement feel particularly frustrating.
With assists now counting, your contribution can still advance the relevant Ordeal even when another player gets the finishing blow.
So if you're working toward Chaos Relic Armour after Patch 15, don't play as though only final blows matter.
Contribute damage, support your team and keep playing the relevant class.
Do Chaos Siege Matches Count Toward Chaos Relic Armour?
Chaos Siege does not currently offer a separate Chaos Relic Armour progression path.
This is an easy point to misunderstand because Chaos Siege is specifically built around playing as the Heretic Astartes.
You can fight through the new PvE mode as Chaos, use Chaos support such as Cultists and a Helbrute, and take part in the new Siege experience. But that does not mean the mode has replaced the Eternal War requirement for the existing Chaos Relic Armour sets.
The two systems should be treated separately:
- Chaos Siege: new Chaos-focused PvE gameplay.
- Chaos Relic Armour: existing Eternal War-based cosmetic progression.
- Patch 15 assist change: makes the existing Chaos Relic Armour Ordeals more forgiving.
Don't confuse Chaos Siege rewards with Chaos Relic Armour
Chaos Siege introduces its own gameplay and reward structure, but that should not be interpreted as an alternative method for unlocking the existing Chaos Relic Armour sets.
If you're playing Chaos Siege specifically because you want those armour pieces, you should know this before spending hours grinding the mode.
The Best Way to Work on Chaos Relic Armour
If Chaos Relic Armour is your goal, use Eternal War rather than waiting for Chaos Siege to provide the progression.
1. Choose the class you want to progress
Start with the class associated with the Chaos Relic Armour you're trying to unlock.
2. Play Eternal War
The existing armour progression is tied to Eternal War, so this is where you should spend your time when working toward the Ordeals.
3. Take advantage of assists counting
You no longer need to worry as much about securing every final blow.
Kill assists now count toward the Chaos Relic Armour Ordeals, so you don't need to secure every qualifying elimination yourself.
4. Keep playing consistently
The requirement is based on your performance across matches rather than simply entering a single game and getting a large number of eliminations.
5. Don't grind Chaos Siege expecting the armour to unlock
Chaos Siege is worth playing for its own PvE experience, but don't use it as a substitute for Eternal War if your immediate goal is Chaos Relic Armour.
Chaos Siege vs Eternal War for Chaos Relic Armour
| Activity | Chaos Relic Armour Progress |
|---|---|
| Chaos Siege | No separate unlock route |
| Eternal War | Yes |
| Eternal War kills | Count |
| Eternal War kill assists | Count after Patch 15 |
The simplest rule is:
Want Chaos Relic Armour? Play Eternal War.
Want the new Chaos PvE experience? Play Chaos Siege.
At the moment, they are not interchangeable progression paths.
Will Chaos Siege Get Its Own Armour Progression?
There is currently no confirmed Chaos Siege progression system that replaces the existing Chaos Relic Armour Ordeals.
That could change in a future update, but there is no reason to wait for a potential change if you want to unlock the existing armour now.
For the current version of Space Marine 2, the practical route remains Eternal War, with Patch 15's assist change making the requirement easier to work toward.
If Saber Interactive eventually adds Chaos Relic Armour progression to Chaos Siege, that would change the situation. Until then, treat any claim that the new PvE mode already unlocks the armour as outdated or incorrect.
FAQ
Can you unlock Chaos Relic Armour in Chaos Siege?
No. Chaos Siege does not currently provide a separate unlock route for Chaos Relic Armour. The existing progression remains tied to Eternal War.
Does Chaos Siege count toward Chaos Relic Armour?
No separate Chaos Siege progression currently applies to the existing Chaos Relic Armour Ordeals. You still need to work through the Eternal War-based progression.
Do assists count for Chaos Relic Armour in Space Marine 2?
Yes. Patch 15 changed the Chaos Relic Armour Ordeals so that kill assists count.
Where do you unlock Chaos Relic Armour?
The existing Chaos Relic Armour sets are unlocked through their Eternal War Ordeals.
How many kills do you need for Chaos Relic Armour?
The original requirement was 9 kills in more than 9 Eternal War matches for the relevant class. Patch 15 subsequently added kill-assist credit to the Ordeals.
Is Chaos Relic Armour available through PvE?
The existing Chaos Relic Armour progression is tied to Eternal War, not Chaos Siege. Chaos Siege is a PvE mode, but it does not currently provide an alternative route to these armour sets.
Is Chaos Relic Armour better than normal armour?
No. Chaos Relic Armour is a cosmetic reward. It should not be treated as a stat upgrade that makes your Chaos character stronger.
Bottom Line
Chaos Siege does not currently unlock Chaos Relic Armour.
If you want the existing Chaos Relic Armour sets, continue working through Eternal War. The good news is that Patch 15 changed the Ordeals so kill assists now count, making the progression less dependent on securing every final blow yourself.
Chaos Siege is still worth playing if you want the new Chaos PvE experience, but don't expect it to substitute for the Eternal War armour grind.
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