WireAnnouncements · Nov 11, 2026How our Wire works

MARVEL Cosmic Invasion’s Siege of Castle Doom DLC lands November 10

The DLC adds a run-based Castle Doom mode, two new playable characters and Doctor Doom himself to the co-op brawler.

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  • ReleaseNovember 10
  • PlatformsSteam, Switch 1 and 2, PS4, PS5, Xbox Series X|S
  • DeveloperTribute Games
  • PublisherDotemu

Dotemu and Tribute Games have revealed extended gameplay footage of The Siege of Castle Doom, the upcoming DLC for MARVEL Cosmic Invasion. The DLC launches November 10 on Steam, Nintendo Switch 1 and 2, PlayStation 4 and 5, and Xbox Series X|S.

The headline addition is a new Castle Doom game mode. It is a run-based challenge where you race against a filling Siege Gauge to stop Doctor Doom before he can activate the Cosmic Inductor. According to the studio, the mode differs from the base adventure in its challenges, rewards and branching battles.

Our review: Marvel Cosmic Invasion Review (9.0/10)

Two new playable characters, including Doctor Doom

The Invisible Woman and Doctor Doom both join the playable roster in the DLC. Doom is playable for the first time in the game.

Along the way, players gather Battery Cells and complete challenges to earn defense, damage or tactical upgrades from a pool of 12 perks. Each run’s route and perk choices shape your build, and the Siege Gauge rises as you go, with the castle’s forces growing stronger as it fills.

After each run, Reed’s Lab unlocks new equipment, events and modifiers. According to the publisher, these modifiers make later attempts harder but offer better potential rewards.

The base game has sold more than 2 million copies, according to the publisher. The extended gameplay video is available on YouTube.

MARVEL Cosmic Invasion’s Siege of Castle Doom DLC lands November 10Watch the video YouTube
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