"Warhammer 40k: Space Marine 2 Mod Adds 12-Player Co-Op, Raid Missions Coming"

Warhammer 40,000: Space Marine 2 has captivated players since its record-breaking launch last year, and the modding community has been instrumental in pushing the game beyond its original limits. Their latest achievement—unlocking 12-player co-op—may very well be their most impressive feat yet.

Tom, also known as Warhammer Workshop and the creative force behind Space Marine 2’s acclaimed Astartes Overhaul mod, announced the arrival of this expanded co-op experience this week. The reveal includes gameplay footage showcasing multiple players uniting to defeat a Tyranid Trygon Prime, delivering an intense, MMO-style boss battle that feels epic in scale.

“Honestly, I’m just kind of in awe of Saber’s support for the modding community,” Tom shared with IGN. “None of us expected 12-player PvE sessions to be possible this soon—but somehow, here we are. Thanks to their generosity and trust, this huge leap forward is finally here, and it completely changes what we can do.”

It’s important to note that the current version of the mod is still in testing phase. While functional and stable, it clearly disrupts the game’s original PvE balance—after all, throwing nine extra players into encounters designed for small teams naturally makes things easier.

Nonetheless, modders are already building new content around this breakthrough. Tom revealed that upcoming features could include modes like prop hunt, PvP within operations, large-scale horde mode enhancements (once the official mode releases), and most excitingly, raid-style missions featuring massive bosses that require real coordination and strategy to take down—alongside entirely new mechanics.

The Space Marine 2 modding scene has evolved into a thriving ecosystem, with over 20,000 active members currently engaging in the main Discord server.

“As both a modder and a player, it’s hard not to be excited,” Tom added. “Huge credit as always to the Saber team for not just making all this possible, but continuing to drop amazing content of their own too, without any of the usual predatory battle-pass nonsense we take for granted in modern titles.”

Could this 12-player co-op mod hint at what’s coming in Space Marine 3? With Saber confirming the sequel is already in development and having previously described future titles as including "large-scale battles that are even more spectacular," the possibility of higher co-op player caps becomes even more intriguing.

In the meantime, Space Marine 2 continues to evolve. Soon, players can expect the release of horde mode, a brand-new class, additional Operations maps, and fresh weaponry. Patch 8 details have already teased some of these features, including confirmed mechanics and maps for the upcoming horde mode.

Until Space Marine 3 arrives, the modding community will continue to breathe new life into the game—and this 12-player co-op breakthrough is a prime example of their passion and creativity in action.