Marvel Cosmic Invasion 'Siege of Castle Doom' DLC Release Date Confirmed — Doctor Doom and Invisible Woman Join the Roster

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Dotemu and Tribute Games have confirmed the release date for the next downloadable content pack for Marvel Cosmic Invasion.

Announced at New York Comic Con, the 'Siege of Castle Doom' expansion will be available on 10th November and introduces two new playable characters and a fresh game mode.

The DLC adds Sue Storm (The Invisible Woman) and Doctor Doom as fully voiced playable fighters, each arriving with unique move sets designed to distinguish their playstyles.

The development teams emphasized that both characters received distinct animations and voice work to integrate them more fully into the game's roster.

On the new mode, developers described it as a Doom-focused experience that leans into classic Marvel storytelling.

In plain terms, the team says the mode centers on Victor Von Doom and aims to evoke the tone and location-based drama of Doom’s foreboding headquarters, continuing the game's celebration of classic Marvel eras.

The announcement at New York Comic Con followed earlier teases from the studios and expands the core game's character lineup.

Dotemu and Tribute Games have built reputations for reviving retro-inspired action and arcade-style titles; this expansion continues their support for Marvel Cosmic Invasion with post-launch content.

For players tracking releases across platforms, Dotemu’s projects frequently reach multiple storefronts and consoles.

Nintendo Switch owners who follow new content through the Nintendo eShop or announcements similar to Nintendo Direct should watch official publisher channels for platform-specific availability and patch notes.

The 'Siege of Castle Doom' DLC represents a clear content update for Marvel Cosmic Invasion, adding two headline characters and a narrative-focused mode tied to one of Marvel’s most recognizable villains.

With the release date set for 10th November and official confirmation coming from the teams at New York Comic Con, fans now have a firm date to mark on their calendars for the next chapter of the game’s post-launch roadmap.

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