[#item_full_content] Marvel Cosmic Invasion is set to receive The Siege of Castle Doom DLC next month, and as part of that, a new mode has now been revealed. Players will need to scrap Doctor Doom’s next invention, or else his latest plan will be the galaxy’s downfall. You’ll race against time as the Siege Gauge fills, and stop him before he… 
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Marvel Cosmic Invasion The Siege of Castle Doom DLC unveils new game mode
ByMarvelComicBooks.com
October 26, 2026