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

By AaronMay 05,2025

Since the record-breaking release of Warhammer 40,000: Space Marine 2 last year, the modding community has been incredibly active, pushing the boundaries of what's possible in the game. The latest achievement by modder Tom, known as Warhammer Workshop, is particularly groundbreaking. He's behind the acclaimed Space Marine 2’s Astartes Overhaul and has now introduced a 12-player co-op mode, a feature that has transformed the game's multiplayer dynamics. Gameplay footage reveals multiple players engaging a Tyranid Trygon Prime in a thrilling battle that feels like an MMO boss fight.

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This development is remarkable because the vanilla version of Space Marine 2 only supports up to three-player co-op. The modding team, with the backing of developer Saber Interactive, has not only surpassed this limit but also aims to elevate the game to new heights. Tom expressed his admiration for Saber Interactive's support of the modding community to IGN, stating, "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."

The current 12-player co-op mod is still in a testing phase, yet it performs admirably. However, it significantly disrupts the PvE balance, which is expected given the increased number of players compared to what the original encounters were designed for. Nevertheless, modders are capitalizing on this expansion by developing new modes and enhancements. Tom shared with IGN that they are crafting modes such as prop hunt, PvP within operations, extensive updates for the upcoming official horde mode, and exciting raid-style missions featuring formidable bosses that demand teamwork and introduce novel mechanics.

The Space Marine 2 modding community has flourished, boasting around 20,000 active members in its main Discord server. Tom's enthusiasm is palpable as he credits Saber Interactive for their continuous support and for delivering high-quality content without resorting to typical monetization tactics like battle passes.

With the upcoming horde mode, a new class, additional Operations maps, and weapons on the horizon, Space Marine 2 is experiencing an exciting phase. Saber Interactive has recently shared details about Patch 8, confirmed horde mode mechanics, and unveiled the setting for the new map. Moreover, Space Marine 3 is officially in development, buoyed by the success of its predecessor. The 12-player co-op mod might hint at what to expect from the sequel, especially since the announcement of Space Marine 3 promised "large-scale battles that are even more spectacular," suggesting a potential increase in co-op player count.

Until more details about Space Marine 3 emerge, the modding community will continue to innovate and keep the game fresh and engaging, as exemplified by this latest 12-player co-op mod.

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