Summary:

Marvel Cosmic Invasion - The Siege of Castle Doom includes two new playable characters and a new game mode. The Fantastic Four's most powerful member and their greatest adversary are joining the fight against Annihilus! Invisible Woman and Doctor Doom head to Marvel Cosmic Invasion for an intergalactic adventure that will see them face off against the fearsome Annihilation Wave! The Siege of Castle Doom will put the leader of Latveria at the center of its new game mode, set in the nefarious Castle Doomstadt!