Doctor Doom opens his gates — and they’re not inviting you in. Developer Tribute Games (TMNT: Shredder’s Revenge, Scott Pilgrim EX) and publisher Dotemu have revealed extended gameplay for MARVEL Cosmic Invasion: The Siege of Castle Doom, the massive second DLC for their smash-hit co-op brawler, arriving November 10 across all major platforms.
2 MILLION PLAYERS STRONG — NOW THE REAL BATTLE BEGINS
Since launch, MARVEL Cosmic Invasion has drawn over 2 million players to its vibrant pixel-art universe, teaming up across local and online co-op to repel Annihilus and his cosmic swarm. Now the fight turns personal — and dangerous — as you storm the most infamous fortress in the Marvel Universe.
CASTLE DOOM MODE — RUN-BASED, BUFF-FUELLED, BRANCHING BATTLES
The heart of the DLC is the all-new Castle Doom game mode, a run-based experience that diverges sharply from the core game’s linear adventure:
- Race against time — breach Victor von Doom’s stronghold before he activates the Cosmic Inductor, a weapon meant to defeat Annihilus that will instead destroy reality itself
- Choose your path — branching maps mean no two assaults play the same way
- Power up or fall back — complete challenges to earn Battery Cells and unlock from 12 distinct buffs boosting damage, defence, and tactical abilities. Fail, and you’ll face penalties that make every next step harder
- Permanent progress — successful runs unlock gear, lab upgrades, and challenge modifiers that deepen future attempts
- Traps, Doom Bots & returning bosses — every corridor hides a fresh threat, and familiar foes return with deadlier tactics
TWO LEGENDS JOIN THE FIGHT
The DLC adds two playable characters, each bringing unique mechanics to the tag-team system:
- The Invisible Woman — Susan Storm bends light and deploys force fields to shield allies, disrupt enemies, and strike unseen from afar
- Doctor Doom — the man himself enters the fray, blending armoured might, sorcery, and technological precision. The villain becomes the hero — for now
They join the base game’s 15-hero roster, with the Cosmic Swap system letting you pair them with any ally for devastating combos and special attacks.
LAUNCH DETAILS — NOVEMBER 10
MARVEL Cosmic Invasion: The Siege of Castle Doom launches Tuesday, 10 November on:
- Steam (PC)
- Nintendo Switch 1 & 2
- PlayStation 4 & PlayStation 5
- Xbox Series X|S
Pricing and pre-order details are available via store pages. The base game supports drop-in/drop-out multiplayer for up to four players locally or online, so you can assemble your squad and breach the walls together.
From the team that redefined retro beat-’em-ups, this isn’t just more content — it’s a bold evolution of the formula, blending the series’ signature style with deeper replayability and higher stakes. Doom awaits.
Find out more here: MARVEL Cosmic Invasion
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