SKU: 26709315792

Achtung! Cthulhu 2d20 Gamemaster's Guide

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Description

Achtung! Cthulhu 2d20 Gamemaster's GuideDirect the course of the new Secret War! Welcome to the Secret War in this fast paced pulp influenced rollercoaster of an RPG that nimbly mixes the sanity challenging terror of Lovecraftian cosmic horror, with the chaos and heroism of World War II. As a gamemaster you will bring to life this pulp influenced world of brave Allied heroes and dauntless two fisted adventure, guiding the heroic actions of players while also directing the twisted might of

Direct the course of the new Secret War!

 Welcome to the Secret War in this fast-paced pulp-influenced rollercoaster of an RPG that nimbly mixes the sanity-challenging terror of Lovecraftian cosmic horror, with the chaos and heroism of World War II. 

As a gamemaster you will bring to life this pulp-influenced world of brave Allied heroes and dauntless two-fisted adventure, guiding the heroic actions of players while also directing the twisted might of the Nazi occult: the Cult of the Black Sun, who wield foul magic and summon captive horrors and Nachtwölfe, their rivals who place their trust in Atlantean technology, weird science, and strange wonder weapons. 

You will shape a world where dread secrets and powerful artifacts lie forgotten in ancient ruins, where dusty tomes are replete with eldritch knowledge, and you’ll arm players with experimental technology, deadly weapons, and powerful magic, to do battle with this uncanny threat. 

You’ll bring to life exotic races like the Deep Ones, undersea worshippers of the dreaming god Cthulhu, or the strange Mi-Go, fungoid-insectoid beings who have come to Earth for an unknown purpose. You’ll also control the sanity-sapping monsters, entities, and gods of the Mythos themselves, who seek to take advantage of the chaos of the second world war to extend their dominion over the minds of men. 

Will your players prevail against all odds, or will they, like so many others before, fall to the malign influence of the Mythos? That is your story to shape and tell… 

Inside this Gamesmaster's Guide 260+ page full color US Letter sized hardback you’ll find: 

  • Dedicated advice on the art of gamemastering including managing the game economy and specific tips for creating memorable characters, adventures, and campaigns to thrill and delight your players. 
  • Major new lore and detailed background information on the six major factions contesting the Secret War: Section M, Majestic, Black Sun, Nachtwölfe, the Deep Ones, and Mi-Go including their backgrounds, history, hierarchy, secret bases and missions, and goals. 
  • A vast repository of hidden lore and forbidden magical knowledge including new Mythos books and tomes, powerful ritualistic magic, plus the damnable spellbooks of Nyarlathotep, Yog-Sothoth, and dread Cthulhu himself! 
  • Arm your players with a wealth of new weapons and espionage devices from secret government labs and classified research departments with the Secret Weapons of the Secret War chapter. 
  • Complete profiles and statistics for the powerful heroes and villains of the Secret War, the men, and women who do battle for the fate of mankind, plus a huge bestiary brimming with all the terrifying gods, monsters, and entities of the Mythos themselves.

You'll receive a FREE GM's Guide PDF right away. 

NOTE! The Achtung! Cthulhu Player's Guide contains the full core cinematic 2d20 rules for actual play and you’ll require that to play the game.

What is Achtung! Cthulhu?

Achtung! Cthulhu is a setting for Lovecraftian roleplaying during World War II, which allows players to discover the truth behind the malign influence of the Mythos on the Nazi war machine and beyond, as conflict engulfs the globe from 1939 to 1945.

In this pulp-influenced world of brave Allied heroes and dauntless two-fisted adventure, players will take on the roles of Allied servicemen and women, secret agents, members of the resistance, or even hapless civilians caught up in the wider conflict. All stand firm against the twisted might of the Nazi occult: the Cult of the Black Sun, who wield foul magic and summon captive horrors in their bid to unleash Yog-Sothoth and Nachtwölfe, their nominal allies and rivals who place their trust in Atlantean technology, weird science, and strange wonder weapons to prevail.

Players will experience a world where dread secrets and powerful artifacts lie forgotten in ancient ruins, abandoned sites, and forgotten cities, and peer deep into dusty tomes and manuscripts seeking to understand eldritch knowledge that was never meant for the sight of mortals. They’ll arm themselves with experimental technology and deadly weapons and learn to wield powerful magical spells or harness potent psychic powers to fight against this uncanny threat.

They’ll also encounter exotic native races like the Deep Ones, undersea worshippers of the dreaming god Cthulhu, or the strange Mi-Go, fungoid-insectoid beings from the furthest corners of the solar system who have come to Earth for an unknown purpose. Towering over them all are the monsters, entities, and gods of the Mythos themselves, who seek to take advantage of the chaos of the second world war to extend their dominion over the minds of men.

Will your heroes prevail against all odds, or will they, like so many others before, fall to the malign influence of the Mythos? That is your story to tell…

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SKU: 26709315792

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Candice K
Natrona Heights, US
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving. In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there. The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
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Reviewed in the United States on November 2, 2024
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S. Berg
Draper, US
★★★★★ 5
Good balls
Color: S6-glow
My dog is a chewer, and these have held up for close to a year actually a pretty good product
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Reviewed in the United States on May 27, 2026
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nanny america
Lexington, US
★★★★★ 3
Disappointed
Color: S6-muti-color
These were great for about 20 minutes then they stopped squeaking...we have 2 left that I have saved but the other 4 do not squeak anymore...disappointed as my dog loves to squeak things...would not buy these again...My dog is only an 8lb dog too...but he can still play with the balls without the squeak...
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Reviewed in the United States on April 26, 2026
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joymom
Waukegan, US
★★★★★ 5
Great Value for a ball my dog loves!
Color: S6-muti-color
I wish these ball were in the subscription program! My dog gets sooo excited by the new ball, but her interest in things lasts for a few days. She kills the squeak within 11minutes, but the squeaker stays in place rather than becoming a chocking or swallow hazard, and she still loves to chew it. Next, we must throw the ball approximately 723 times the first day, possibly 496 times on day 2, and just 3- 4 on day 3, at which point she will chase the ball before hollering "it's over here if you need it," while she checks on the chipmunk den. We currently have 17 of these balls in our yard (because we have given several leftovers to a less discriminating doodle next door). These balls hold up really well, get her extremely active for the first couple of days, and are a much cheaper than doggie daycare (after an active morning with a new ball, she is happy to chew on it and sleep much of the day). I always have these on hand!
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Reviewed in the United States on November 22, 2025
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Michelle
Lake Worth, US
★★★★★ 4
Pieces chewed off
Color: white & green
My Aussiedoodle loves it. I throw it down the hallway, it bounces crazy, and he chases it. The only complaint is that he can't chew much of the ball part. So now I have to have it put away and brought out for special playtime.
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Reviewed in the United States on April 9, 2026

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