Get Your First Look at our New Game Mode in The Siege of Castle Doom DLC Trailer
Tribute Games Inc.
Doctor Doom is plotting once again, and it’s time to suit up, Super Heroes! Castle Doomstadt brings a whole new game mode as our Siege of Castle Doom DLC lands on November 10!
Take on a run-based game mode that will challenge even the fastest, toughest and bravest Super Heroes to their core. Race against time as the Siege Gauge fills. Each moment that passes and every hit you take fills the gauge further, making enemies faster and more dangerous!
Choose your path through Castle Doom’s labyrinthine corridors. Discover unique doors to find new challenges and rewards, and find enhancements to harness combat abilities and take on new Doom Bots, as well as bosses and enemies from the original MARVEL Cosmic Invasion campaign.
Collect batteries by defeating enemies throughout your run, used to charge the Stabilizer - our only defense against Doctor Doom’s sinister plot! Use the Stabilizer to invest in defense, damage or tactical upgrades from a collection of 12 different perks. Charge it completely to unlock the next area of Castle Doom.
Once the Siege Gauge fills, it’s game over. Can you stop Victor von Doom before he can activate the deadly Cosmic Inductor? Succeed or fail, the energy you’ve collected will allow Super Heroes to unlock new equipment, events and modifiers within Reed Richard’s Lab.
The Siege of Castle Doom DLC’s new Castle Doomstadt game mode is built around player choice - allowing our Super Heroes to take on Victor von Doom in your own way and adding near infinite replayability to MARVEL Cosmic Invasion.
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This announcement was originally published by Tribute Games Inc. on Steam on Oct 26, 2026.
Open the original on Steam