Oct 1, 2026
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3/5 Moderate
Chaos Siege Mode introduces playable Chaos Space Marines in PvE for the first time alongside the new Crucible progression system and One-Handed Hammer weapon.
Key Changes
- 1Chaos Siege Mode: Play as Chaos Space Marines in PvE for the first time
- 2Crucible System: New progression mechanic using mission debuffs to earn rewards
- 3One-Handed Hammer: New weapon for Tactical, Assault, Bulwark, and Techmarine
- 4Two new Siege sectors added on the planet Avarax
- 5Lamenters Armour Set: Full set unlockable through the new Crucible System
- 6Heroic Weapon Variants: 9 new variants across Power Axe, Auto Bolt Rifle, and Hammer
- 7Season Pass 3: Launch of Space Wolves and Exorcists cosmetic DLC packs
All Changes
🎮Game Modes(2)
- newChaos Siege Mode: Added Chaos Siege Mode, allowing players to play as Chaos Space Marines in PvE for the first time.
- newAvarax: Introduced two new Siege sectors set on the planet Avarax.
⚙️Gameplay Systems(1)
- newCrucible System: Introduced the Crucible System, allowing players to apply Penances (debuffs and negative modifiers) to missions for rewards.
⚔️Weapons(4)
- newOne-Handed Hammer: Added the One-Handed Hammer weapon, available for Tactical, Assault, Bulwark, and Techmarine classes.
- newPower Axe: Added three new Heroic variants for the Power Axe.
- newAuto Bolt Rifle: Added three new Heroic variants for the Auto Bolt Rifle.
- newOne-Handed Hammer: Added three new Heroic variants for the One-Handed Hammer.
🎨Cosmetics & DLC(5)
- newLamenters Armour Set: Added the full Lamenters armour set as a reward for the Crucible System.
- newPauldrons: Added two new Pauldrons to the Armoury.
- newIron Halo: Added a new Iron Halo cosmetic to the Armoury.
- newSpace Wolves Champion Pack: Released the Space Wolves Champion Pack DLC, including a Wolf Guard Champion skin, Space Wolves shield, and unique One-Handed Hammer.
- newExorcists Cosmetic Pack: Released the Exorcists Cosmetic Pack DLC, featuring 6 items inspired by the daemon hunters.
Summary
The Anniversary Update II (Patch 15) for Space Marine 2 delivers a major content drop headlined by the new Chaos Siege Mode, allowing players to control Chaos Space Marines in PvE missions across two new sectors on Avarax. The update also introduces the Crucible System, a high-stakes progression mechanic where players take on debuffs to earn exclusive rewards like the Lamenters armor set. Additionally, the arsenal expands with the community-requested One-Handed Hammer and several new Heroic weapon variants, while Season Pass 3 kicks off with two new cosmetic DLC packs.