MARVEL Cosmic Invasion's Castle Doom DLC Gets Extended Gameplay Ahead of November 10 Launch

DotEmu has shared an extended look at Castle Doom, the new mode coming to MARVEL Cosmic Invasion as part of its second DLC. The gameplay preview arrives ahead of the DLC's November 10 launch.

In Castle Doom, players race against a rising Siege Gauge while trying to stop Doctor Doom before he can activate the Cosmic Inductor. The mode also asks players to gather Battery Cells and complete challenges to earn defense, damage, or tactical upgrades from a collection of 12 different perks.

Castle Doom includes branching routes through the castle. Players choose their path and select buffs that alter combat abilities. The castle's forces grow in power as the Siege Gauge fills, so reaching Victor von Doom before the gauge is full is a central goal.

After each run, players can permanently unlock new equipment and events from Reed's Lab, along with modifiers that deepen the challenge and potential rewards in future attempts.

The DLC launches simultaneously on PC via Steam, Nintendo Switch 1 and 2, PlayStation 4 and 5, and Xbox Series X|S. It is the second DLC for MARVEL Cosmic Invasion. The first launched on May 18 and added X-Men's Cyclops and Fantastic Four's The Thing to the roster.

The new DLC pack also includes new playable characters: Doctor Doom and The Invisible Woman. At launch, the roster included Wolverine, Spider-Man, Venom, Captain America, and Iron Man. The game initially launched in December 2025 and has since accumulated over 2 million players, according to Insider Gaming.

This story is based on a single source, Insider Gaming, and should be treated as a sourced digest. No hands-on impressions or independent verification were provided.