Marvel Cosmic Invasion Announces “The Siege of Castle Doom” DLC With Doom

Marvel Cosmic Invasion is getting more Doom in its next expansion. The beat ’em up, which slipped out quietly last year, is set to return this autumn with a new add-on called “The Siege of Castle Doom,” putting Victor Doom at the center of a fresh mode and promising two additional playable characters alongside him.

Key takeaways

  • Marvel Cosmic Invasion’s new expansion is titled “The Siege of Castle Doom.”
  • The add-on is planned for release this autumn and features Victor Doom as the headline villain.
  • The expansion will introduce a brand-new gameplay mode and add two new playable characters.
  • So far, only a key art has been shared in three variations, with no trailer released.
  • The base game supports both solo and co-op play with a roster of more than fifteen characters.

“The Siege of Castle Doom” arrives this autumn

Details for “The Siege of Castle Doom” are currently limited. Instead of a full reveal trailer, the only confirmed material is a key art package presented in three versions. Even so, the expansion has a clear pitch: it will spotlight Victor Doom and place him in a completely new game mode.

The announcement also confirms two additional playable characters will be included with the expansion. Beyond that, no hints have been provided about who they are or how they will connect to the new mode.

Doom’s latest spotlight—and what’s in the original game

The timing lines up with Victor Doom’s broader presence across the superhero landscape, fueled by online discussion and renewed attention around upcoming Marvel projects. In the meantime, Disney is continuing to funnel that energy back into Marvel Cosmic Invasion with this new expansion announcement.

For context, Marvel Cosmic Invasion is a 2D side-scrolling beat ’em up designed for both single-player and co-op sessions. Players can team up with others or take on the game alone, and the character roster includes more than fifteen options. Among the playable heroes listed are Spider-Man, Venom, Wolverine, Iron Man, She-Hulk, Silver Surfer, and Nova.

Development is credited to Tribute Games, with publishing by Dotemu. The studio behind the game previously worked on Scott Pilgrim vs. The World: The Game, and the current beat ’em up continues that style of energetic, comic-book action for modern consoles and PC.

Where you can play

The expansion news is tied to the game’s current platform lineup, including PC, PlayStation 5, PlayStation 4, Xbox Series X|S, Nintendo Switch, and Nintendo Switch 2, with support also listed for GFN.

Marcus Chen is a gaming journalist and industry reporter with more than 10 years of experience. He covers releases, announcements, and trends across PC, PlayStation, Xbox, and Nintendo, and keeps a close eye on the indie scene and esports. Previously an editor at several gaming publications, he now writes news, reviews, and breakdowns of major industry moments—from big showcases to updates on popular titles. His work is aimed at players who want a clear, fast read on what happened and why it matters.