Tribute Games and Dotemu have announced that MARVEL Cosmic Invasion: The Siege of Castle Doom will be available from 10 November 2026, bringing new content to the much-loved cooperative scrolling brawler dedicated to Marvel superheroes. The second DLC premium of the game will introduce two new playable characters, Doctor Doom and Invisible Woman, alongside a brand new mode promising to further expand the experience. The announcement was accompanied by a new gameplay video showcasing both characters in action, offering a first glimpse of their respective abilities. The expansion arrives following the original title’s success, which has already drawn in over over 1.5 million players, confirming public interest in the cooperative formula developed by the creators of Teenage Mutant Ninja Turtles: Shredder’s Revenge.
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The first new addition concerns Susan Storm, better known as Invisible Woman, a member of the Fantastic Four capable of manipulating light to become invisible and exploiting her powers during battles. The new video allows players to observe how these abilities have been adapted to the combat system of MARVEL Cosmic Invasion, offering additional strategic options in the fight against Annihilus's forces. Even more surprising, however, is the arrival of Victor von Doom, alias Doctor Doom, one of Marvel’s most iconic villains. For the occasion, the sovereign of Latveria joins the battle against Annihilus, bringing his technological arsenal and his knowledge of occult arts. A combination that promises to distinguish him from other fighters, expanding the options available within the character rotation-based combat system.
Beyond the two new playable superheroes, The Siege of Castle Doom will introduce a dedicated game mode, from which the expansion takes its name. The developers have not yet detailed how this addition works, but its inclusion will represent one of the main features of the DLC, complementing the new additions to the roster. The project continues to expand the offering of MARVEL Cosmic Invasion, highlighting a formula that blends the immediacy of classic arcade beat 'em up games with the ability to switch between different heroes during battles. The arrival of two such distinct figures — Susan Storm and Victor von Doom — will give players new opportunities to experiment with different combinations and approaches against the cosmic threats of the Marvel Universe.
MARVEL Cosmic Invasion: The Siege of Castle Doom will be available from 10 November 2026 as the second premium DLC for the game, introducing Doctor Doom, Invisible Woman and the new homonymous mode. At the moment, no further details on the expansion’s price have been announced. DLC No further details on the expansion’s price have been announced.
