Marvel Cosmic Invasion Siege of Castle Doom DLC Is Live: Doctor Doom and Invisible Woman Join the Fight
Doom has arrived, and he brought a whole new way to play. The Siege of Castle Doom, the second DLC for Marvel Cosmic Invasion, went live on November 10 on just about everything: PlayStation 5 and PlayStation 4, Xbox Series X|S, Nintendo Switch and Switch 2, and PC.
The price is friendly. The DLC runs $7.99, and it is 10 percent off on Steam through November 17, which makes it $7.19. There is also a Year of Doom bundle that packs the base game with both DLC packs for an extra 10 percent off.
TWO NEW FIGHTERS, AND ONE IS DOOM HIMSELF
Susan Storm, the Invisible Woman, joins the roster with light bending powers and force fields. And then there is the headline: Doctor Doom is playable. Tech armor, occult powers, and that ego, all in a pixel art beat em up. Playing as Doom to stop Doom is exactly the kind of comic book nonsense this game does best.
CASTLE DOOM IS THE REAL HEADLINE
The new Castle Doom mode turns the brawler into a run based siege. You pick two heroes, choose your path through the corridors of Castle Doomstadt, and pick your doors as you go, each one hiding fights, traps, rewards, or worse. All the while the Siege Gauge keeps filling. Every second that passes and every hit you take pushes it higher, and when it fills, your run is over and Doom gets to fire the Cosmic Inductor.
CHARGE THE STABILIZER, PICK YOUR PERKS
Beating enemies drops Battery Cells. Those charge the Stabilizer, the answer Reed Richards and his big brain built for Doom's weapon. A charged Stabilizer buys upgrades from a pool of 12 perks covering defense, damage, and tactical tricks, and Reed's Lab holds longer term unlocks that change your next run. Tribute Games says the mode packs more than five times the encounters of the main campaign before you count the new events, traps, and hazards.
BUILT TO RUN IT BACK
The extras round it out right: new unlockable color palettes for every hero who beats Doom, and new tracks from composer Tee Lopes, who never misses. Reviewers who have already run the castle are calling it the replay value the game needed at launch, and at eight bucks I believe them.
WHAT YOU NEED TO PLAY IT
You need the base game. Marvel Cosmic Invasion launched last December from Tribute Games and Dotemu, the crew behind TMNT: Shredder's Revenge, with 15 playable heroes and a tag team system that lets you swap fighters mid combo. If you slept on it, the Year of Doom bundle is the clean way in.
MARVEL COSMIC INVASION SIEGE OF CASTLE DOOM DLC: QUESTIONS EVERYBODY IS ASKING
When did the Siege of Castle Doom DLC come out? November 10, 2026. How much is the Siege of Castle Doom DLC? $7.99, on sale for $7.19 on Steam through November 17. Who are the new playable characters in Siege of Castle Doom? The Invisible Woman and Doctor Doom.
