In the Achtung! Cthulhu universe, a band of Allied heroes fight the Secret War against the Nazi Black Sun and their rivals Nachtwolfe. The Nazi factions have turned to the ancient and terrible powers of the Mythos, weaponizing evil to win the war. This move is starting to yield results as, powered with ancient secrets and terrible Mythos allies, Black Sun and Nachtwolfe are on the verge of unleashing terrible weapons upon the Allied forces. It is your job to stop them - by any means necessary.
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More information.