DotEmu Previews Castle Doom Mode for Marvel Cosmic Invasion
The second DLC for MARVEL Cosmic Invasion adds a new Castle Doom mode and two playable characters when it launches November 10 across platforms.
Updated on Nov. 7, 2026 in eSports
DotEmu released an extended gameplay look at the Castle Doom mode for MARVEL Cosmic Invasion. The mode is part of the game's second DLC, which launches November 10 on PC, Nintendo Switch, PlayStation, and Xbox.
Why it matters
The Castle Doom mode adds a new layer of progression to a game that has already drawn more than 2 million players since its December 2025 launch. The DLC extends the game's roster with Doctor Doom and The Invisible Woman as playable characters.
The developer's gameplay footage shows Castle Doom features 12 perks and a branching structure that requires players to beat a rising Siege Gauge. The release does not specify how the mode's difficulty compares with the existing game.
The players
DotEmu
DotEmu is a video game publisher and developer known for publishing retro-inspired and licensed titles across modern consoles and PC.
The details
Castle Doom requires players to beat a rising Siege Gauge, choose buffs, and unlock equipment that carries into future runs. The second DLC also adds Doctor Doom and The Invisible Woman as playable characters, following a first DLC released May 18 that added Cyclops and The Thing.
Timeline
December 2025: MARVEL Cosmic Invasion initially launched.
May 18: First DLC launched, adding Cyclops and The Thing.
November 10: Castle Doom DLC launches on PC, Nintendo Switch, PlayStation, and Xbox.
Industry Context
Licensed action games increasingly rely on staged DLC releases that add characters and new modes after launch to sustain player engagement. MARVEL Cosmic Invasion's second DLC follows this approach by pairing new roster additions with a separate progression mode.
Players who already own MARVEL Cosmic Invasion can access the Castle Doom mode and two new characters by purchasing the DLC on their platform on November 10. The DLC is released simultaneously across all listed platforms.
The takeaway
Readers following licensed action games can watch whether staged DLC releases continue to shape how these titles hold player interest after launch. The Castle Doom launch will show how a structurally different mode performs alongside the existing roster.
What happens next
The Castle Doom DLC launches November 10 on PC via Steam, Nintendo Switch 1 and 2, PlayStation 4 and 5, and Xbox Series X|S.
Further reading
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Source note: This article includes information reported by Insider Gaming.
