Marvel Cosmic Invasion’s Castle Doom Mode Makes Every Setback Count
Launching November 10, The Siege of Castle Doom adds Invisible Woman, Doctor Doom and a run-based challenge built around Reed Richards’ technology, new perks and permanent unlocks.
The short answer: Launching November 10, The Siege of Castle Doom adds Invisible Woman, Doctor Doom and a run-based challenge built around Reed Richards’ technology, new perks and permanent unlocks.
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Getting to Doctor Doom is only half the problem. In MARVEL Cosmic Invasion’s upcoming Castle Doom mode, players must stop him from activating the Cosmic Inductor while keeping the Siege Gauge from filling. As that gauge climbs, the castle’s forces grow stronger—and if it reaches its limit before the showdown, the run ends.
Arriving November 10, The Siege of Castle Doom takes the fight through the fortress’s winding corridors in a premium DLC that also adds Invisible Woman and Doctor Doom as playable characters. The new mode turns the assault into a series of runs, with routes to choose, combat upgrades and unlocks that carry into future attempts.
Reed’s answer to Doom’s invention
MARVEL Cosmic Invasion is a tag-team beat ’em up from developer Tribute Games and publisher Dotemu, which previously worked on Teenage Mutant Ninja Turtles: Shredder’s Revenge. Its heroes battle Annihilus and his Annihilation Wave. The base roster features 15 heroes, while the Cosmic Swap system lets players select two characters for each level and switch between them. Local and online co-op are part of that underlying formula.
The DLC grew out of a question about that conflict: what was Doom doing during the invasion? His answer is the Cosmic Inductor, a weapon intended to defeat Annihilus but whose flaw threatens the cosmos instead. Reed Richards guides the heroes by voice-over, while Doom taunts their efforts to breach his stronghold.
It was obvious to organize the new game mode around the duality of Reed Richards and Doctor Doom. Tribute Games, via PlayStation Blog
That rivalry drives the mechanics. Defeats push up the Siege Gauge, but victories yield batteries that charge Reed’s Stabilizer and stall Doom’s progress. The assault becomes a balance between advancing through the castle and keeping Doom’s invention in check.
Gathering Battery Cells and completing challenges earns upgrades from a pool of 12 perks covering defense, damage and tactical abilities. Failed challenges can weaken fighters with debuffs, so the route and upgrades players choose matter alongside their combat skills.
What changes between attempts
The castle adds its own obstacles: blizzards on the battlements, hazardous elevator platforms in the Tower of Solitude, traps and Doom Bots. Bosses from the base game return, too. Successful runs help permanently unlock equipment, events and modifiers through Reed’s Lab, opening up new options and challenges for later attempts. Completing a run also unlocks a new color palette for the hero.
The Siege of Castle Doom launches on Steam, Nintendo Switch, Nintendo Switch 2, PlayStation 4, PlayStation 5 and Xbox Series X|S on November 10. Players can wishlist the DLC on Steam ahead of launch.