MARVEL Cosmic Invasion is expanding its superhero brawling action with the arrival of The Siege of Castle Doom, a new premium DLC introducing a replayable game mode and two additional playable characters. Available today, November 10, the expansion brings Doctor Doom and Invisible Woman into the fight, alongside new upgrades, unlockable rewards and additional music.
Developed by Tribute Games (Teenage Mutant Ninja Turtles: Shredder’s Revenge, Scott Pilgrim EX) and published by Dotemu (Absolum), the new DLC takes players into Doctor Doom’s imposing stronghold for an entirely different kind of challenge. Rather than simply offering another collection of traditional stages, The Siege of Castle Doom introduces a run-based game mode built around branching paths, new enemies and battles against the clock.
Players will have access to 12 different perks that can improve their characters’ defensive capabilities, damage output and tactical options throughout each run. However, Doom’s castle is filled with traps and other complications, and failing objectives can leave characters weakened by debilitating effects. Additional equipment, events in Reed’s Lab and gameplay modifiers can also be unlocked, providing further reasons to return and tackle increasingly challenging runs.
The expansion also introduces two highly requested additions to the playable roster. Susan Storm, better known as the Invisible Woman, brings her light-bending abilities and force field manipulation into the battle, offering a new set of powers for players to experiment with. Meanwhile, Doctor Doom joins the roster with his advanced technological armour, formidable intellect and mastery of the occult. Players who defeat Doom can also unlock additional colour palette options for the game’s existing superheroes.
Composer Tee Lopes, who previously contributed to MARVEL Cosmic Invasion, also returns with additional original music tracks that adapt to the action, giving the new content its own musical identity.
The Siege of Castle Doom is available now on PC through Steam, Nintendo Switch, Nintendo Switch 2, PlayStation 4, PlayStation 5 and Xbox Series X|S for $7.99. A limited-time 10% launch discount is available through November 17, although the Nintendo eShop promotion in Europe ends earlier, on November 14.
For newcomers, Dotemu and Tribute Games are also offering the MARVEL Cosmic Invasion: Year of Doom bundle for $37.99. It includes the base game alongside both DLC expansions released this year, providing a way to experience the complete package at a discounted price.
With more than two million players having already joined the fight against Annihilus, MARVEL Cosmic Invasion continues to build on its arcade-inspired approach to superhero action. Its combination of tag-team combat, familiar Marvel characters and classic beat ’em up mechanics now has another substantial addition, with Doctor Doom’s castle providing a new challenge for returning players.