Publisher Dotemu has confirmed a second downloadable content package for Marvel Cosmic Invasion, the studio’s brawler released last year.
The expansion, titled "The Siege of Castle Doom," is slated for a Fall 2026 release window and will add a new game mode plus two additional playable characters, according to the publisher’s announcement.
In a formal statement, Dotemu said the forthcoming expansion will introduce a brand-new mode and expand the playable roster with two characters.
The publisher provided the Fall 2026 timeframe but did not disclose full details about the new mode or the identities of the incoming characters in the initial announcement.
Marvel Cosmic Invasion is currently available on multiple platforms: PC, PlayStation 4, PlayStation 5, Xbox Series X|S and Nintendo Switch.
The title is also listed for availability on Switch 2.
Players on Nintendo hardware can obtain the game through the Nintendo eShop on supported devices.
Dotemu previously released one DLC pack for Marvel Cosmic Invasion that added Cyclops and The Thing to the game's roster.
That first character pack expanded the title’s lineup and demonstrated ongoing post-launch support from the publisher.
Dotemu has established a track record in reviving and publishing modern takes on classic beat ’em up design.
The company previously published projects such as Streets of Rage 4 and Teenage Mutant Ninja Turtles: Shredder’s Revenge, both of which received additional content post-launch and helped define Dotemu’s position in the retro-brawler space.
The publisher’s announcement did not attach pricing, platform-specific release notes, or a precise launch date beyond the Fall 2026 window.
Further details are expected in follow-up communications from Dotemu and on platform storefronts; fans should monitor Dotemu’s official channels and respective digital storefronts such as the Nintendo eShop for full patch notes, launch date confirmation, and platform availability at release.
Reporting on this announcement was informed by Dotemu’s press material and coverage by contributors including Peter Glagowski.
As Dotemu releases more information, outlets will publish full breakdowns of the new mode, character identities, and any platform-specific features or launch promotions.
The expansion, titled "The Siege of Castle Doom," is slated for a Fall 2026 release window and will add a new game mode plus two additional playable characters, according to the publisher’s announcement.
In a formal statement, Dotemu said the forthcoming expansion will introduce a brand-new mode and expand the playable roster with two characters.
The publisher provided the Fall 2026 timeframe but did not disclose full details about the new mode or the identities of the incoming characters in the initial announcement.
Marvel Cosmic Invasion is currently available on multiple platforms: PC, PlayStation 4, PlayStation 5, Xbox Series X|S and Nintendo Switch.
The title is also listed for availability on Switch 2.
Players on Nintendo hardware can obtain the game through the Nintendo eShop on supported devices.
Dotemu previously released one DLC pack for Marvel Cosmic Invasion that added Cyclops and The Thing to the game's roster.
That first character pack expanded the title’s lineup and demonstrated ongoing post-launch support from the publisher.
Dotemu has established a track record in reviving and publishing modern takes on classic beat ’em up design.
The company previously published projects such as Streets of Rage 4 and Teenage Mutant Ninja Turtles: Shredder’s Revenge, both of which received additional content post-launch and helped define Dotemu’s position in the retro-brawler space.
The publisher’s announcement did not attach pricing, platform-specific release notes, or a precise launch date beyond the Fall 2026 window.
Further details are expected in follow-up communications from Dotemu and on platform storefronts; fans should monitor Dotemu’s official channels and respective digital storefronts such as the Nintendo eShop for full patch notes, launch date confirmation, and platform availability at release.
Reporting on this announcement was informed by Dotemu’s press material and coverage by contributors including Peter Glagowski.
As Dotemu releases more information, outlets will publish full breakdowns of the new mode, character identities, and any platform-specific features or launch promotions.
