Space Marine 2 Purgation Update: Everything You Need to Know About Patch 13

The Emperor's finest just got a whole lot deadlier. The Space Marine 2 Purgation Update (Patch 13) dropped on May 21, 2026, right in the thick of Warhammer Skulls — and brother, it did not disappoint. Whether you've been grinding Operations since launch or you're a fresh recruit eyeing the free trial, this is the update that changes everything. Strap on your Mk X Tacticus armour, because we're breaking down every major addition, tweak, and glorious bolter buff in Patch 13.

What Is the Purgation Update?

The Space Marine 2 Purgation Update is the game's thirteenth major patch, and it's arguably the biggest content drop since launch. Developed by Saber Interactive and published by Focus Entertainment, Patch 13 arrived as a shadow-drop during the Warhammer Skulls 2026 festival — which, if you weren't watching, was basically Christmas morning for 40k fans. The update is free for all players and introduces a brand-new PvE Operation, a completely overhauled Siege Mode, a customisable Battle Simulator, and the Iron Hands Chapter Pack as paid DLC.

This isn't just a balance pass. This is a full-blown content expansion, and the community has been absolutely buzzing about it.

The New Purgation Operation

The headline addition is the Purgation Operation itself — a new co-op PvE mission set in the Kadaku swamps. Your squad of three Space Marines is tasked with reclaiming a Mechanicus research facility while investigating the mysterious disappearance of its research team. If that sounds ominous, it absolutely is. The swamp environment is oppressive, the enemy density is brutal, and the atmosphere is dripping with that classic 40k dread.

What makes Purgation stand out is its pacing. Unlike some of the more linear Operations, Kadaku rewards careful positioning and communication. Expect ambushes, tight corridors, and moments where the Tyranid swarm feels genuinely overwhelming. It's exactly the kind of mission that reminds you why Space Marine 2 is one of the best co-op shooters in years.

Siege Mode 2.0: A Complete Overhaul

If you bounced off the original Siege Mode, Patch 13 gives you every reason to come back. Siege Mode 2.0 is a ground-up rework of the wave-based survival experience, and it's dramatically more engaging than its predecessor.

What's New in Siege Mode

The Blessings and Atonements System is a new progression mechanic that rewards sustained performance with powerful buffs — and punishes failure with escalating penalties. It creates genuine tension in every wave. New Boss Encounters bring the Hive Tyrant and the Mutalith Vortex Beast as Siege Mode bosses. Both are absolute nightmares to fight, and both are spectacular to look at. The rebalanced difficulty curve makes early waves more forgiving, but the late-game ramps up significantly harder than before. Veterans will find the challenge they've been craving. The expanded Requisition Terminal offers more items, more options, and more ways to customise your loadout mid-run.

Siege Mode 2.0 transforms what was a decent side mode into a genuinely compelling endgame loop. If you're looking for something to sink hours into between Operations, this is it.

The Battle Simulator: Your New Best Friend

One of the most requested features since launch has finally arrived: the Battle Simulator. Accessible from the Battle-Barge, this customisable training arena lets you practice against any enemy type, experiment with weapon loadouts, and test builds without the pressure of a live mission.

For competitive players and theorycrafters, this is enormous. Want to know exactly how your Melta Rifle performs against a Carnifex at various ranges? Now you can find out without dragging your squadmates into a live Operation. The Battle Simulator also supports solo play, making it a fantastic tool for newer players who want to get comfortable with the game's mechanics before jumping into co-op.

Bolter Weapons Rework: Finally, the Bolter Feels Like a Bolter

Here's the change that's got the community most excited: bolter weapons received a 30% damage increase for non-headshots. This was a long-overdue adjustment. For too long, the iconic bolter — the weapon that defines Space Marine identity — felt underpowered compared to more exotic options. Patch 13 fixes that.

The rework standardises Time-to-Kill (TTK) across different enemy types, meaning your bolter now performs consistently rather than feeling weak against armoured targets. It's a change that makes the entire class of weapons feel satisfying to use, and it opens up new build possibilities for players who want to lean into the classic Space Marine fantasy.

New Weapons and Equipment

Patch 13 also introduces two new pieces of kit. The Bolt Carbine Sidearm is a one-handed secondary weapon that gives you more flexibility in close-quarters situations. It's compact, punchy, and pairs beautifully with melee-focused builds. The Pyreblaster Canister is a new PvE equipment slot item that functions as an incendiary grenade — excellent for crowd control and area denial, particularly in the tighter corridors of the Purgation Operation.

Both additions feel purposeful rather than padding — they slot into existing playstyles and open up new tactical options without overshadowing what's already there.

Iron Hands Chapter Pack: For the Omnissiah

The Iron Hands Chapter Pack is the paid DLC component of Patch 13, released as part of Season Pass 2. It includes a Techmarine Champion skin, an exclusive Omnissiah Axe skin, and four unique mechanical armour pieces that lean hard into the Iron Hands' cold, augmetic aesthetic.

If you're an Iron Hands fan — or just someone who appreciates the Adeptus Mechanicus aesthetic bleeding into your Space Marine — this pack is worth a look. The armour pieces in particular are some of the most detailed cosmetics the game has offered to date.

Free Trial: Now's the Time to Jump In

To celebrate Warhammer Skulls 2026, Saber Interactive made a limited-time free trial available on Steam and PlayStation 5. The trial grants access to the campaign's opening missions, three Operations (Inferno, Decapitation, and Vortex), and all PvP game modes. If you've been on the fence about Space Marine 2, this is the perfect opportunity to see what all the fuss is about.

Final Verdict: Patch 13 Is the Update Space Marine 2 Deserved

The Space Marine 2 Purgation Update is a statement. It's Saber Interactive saying: we're not done, we're listening, and we're committed to making this game better. Between the new Operation, the Siege Mode overhaul, the Battle Simulator, and the bolter rework, Patch 13 addresses nearly every major piece of community feedback from the past year.

For returning players, there's never been a better time to come back. For newcomers, the free trial removes every excuse. The Emperor protects — and apparently, so does Patch 13.

For the Emperor. For Ultramar. For the Purgation of Kadaku.