Full Metal Cyberpunk Interface 19.40 (2013)

[Taken from the back cover text.]

A terrifying World War Two setting, fully compatible with the Call of Cthulhu, Sixth Edition and Savage Worlds Deluxe Edition (SWD) roleplaying games.

Discover the secret history of the war that may (or may not) have happened: a time of strangely enhanced soldiers, more machine than man; a twisted future-past of occult and technological development and intrigue; and a society where humanity struggles to maintain its increasingly fragile grip on reality (whatever that might actually be).
Alex Towton, Section M

• A variant, Mythos-Fuelled history for the Interface Zero 2.0: Full Metal Cyberpunk setting, where ancient gods watch your every move from the shadows of the datastream
• New rules on how to include cyberware, Gruesome genetic manipulations, and even weirder science in your Achtung! Cthulhu games
• a 33 page adventure, set in 1941, that can be played by characters from either World War Two or the Far Future

In fact, a whole Crossover dossier’s worth of useful Alternate Historical and fantastical information to help you expand your campaign out into the wider world of the Secret War.