Warhammer 40,000: Rogue Trader's third DLC centers on Trazyn the Infinite

Owlcat Games used Warhammer Skulls 2026 to put Warhammer 40,000: Rogue Trader back on the map with The Infinite Museion, the game’s third major story expansion and the one built around Trazyn the Infinite. The trailer did more than flash a famous Necron name. It promised a full story beat centered on Trazyn’s secret vault, his fixation on the von Valancius dynasty, and the choice to either disrupt or carry out his plans.

That is the part Rogue Trader players will actually care about. Warhammer Community says the expansion opens up Trazyn’s vault itself, while Owlcat and Steam say it adds new locations, quests, lore, artifacts, and augmentations folded into the main game. The new companion is a Tech-Priest Manipulus with a shadowed past, which gives the DLC a cleaner pitch than a simple lore cameo. This is not just a museum tour for Necron fans. It is a story hook with a companion attached, plus a fresh augmentation system that lets characters replace damaged flesh with bionics and unlock more esoteric upgrades as the story unfolds.

The timing makes the reveal land harder. Owlcat first teased The Infinite Museion at IGN Fan Fest 2026 on February 26, then followed with the release-date trailer on May 21 during Warhammer Skulls. The expansion is planned for June 11, 2026, with Steam listing it for PC and Owlcat’s materials also naming GOG, Epic Games Store, PlayStation 5, and Xbox Series X|S. The official Rogue Trader site says the game is set in the Koronus Expanse, a perilous backwater sector rife with opportunities, and describes Rogue Trader as the first cRPG in the Warhammer 40,000 universe.

For a game that already shipped Void Shadows and Lex Imperialis, this is the clearest sign yet that Owlcat is still treating Rogue Trader as a live project rather than a finished box on the shelf. The studio’s broader Warhammer 40,000 push also includes Dark Heresy, but The Infinite Museion is the one that matters right now because it brings a marquee lore monster into the main story instead of leaving him on the sidelines.

That is why the reaction has been so positive. In a crowded Skulls season, a Trazyn-led expansion with a new companion, a bionics system, and a vault full of stolen relics reads like a real event, not just another trailer beat.