SKU: 26709315792

Achtung! Cthulhu 2d20 Gamemaster's Guide

Sale price$45.89 Regular price$50.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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…

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26709315792

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 445 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Becky B
Boise, US
★★★★★ 5
Doggy chew thing.
Size: 5.5 Inch, Color: Ring Toy
My two dogs love this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
J
Verified Purchase
Jason
Lake Worth, US
★★★★★ 3
Dog Loves It, But Durability/Safety Major Issue
Size: 8 Inch, Color: Tree Branch
My 9 month old Frenchie loves it, but she got pretty sick this weekend and was vomiting all day...next day she finally threw up a big chunk of this toy...just beware if your dog is a heavy chewer, this may not be the right fit for you. Not the best durability...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
J
Verified Purchase
Julia
Waukegan, US
★★★★★ 5
She loves them, therefore I love them too
Size: 5.5 Inch, Color: Ring Toy
My furbaby LOVES these, especially the peanut butter flavored ones. I still regularly brush her teefers, but these do help with dental care.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
P
Verified Purchase
Piano Man
Lake Worth, US
★★★★★ 1
Made mostly of POLYPROPYLENE PLASTIC and should not be injested.
Size: 8 Inch - 2 Pack, Color: Tree Branch
BAD PRODUCT. DO NOT BUY THESE FOR YOUR DOG. They are made mostly of POLYPROPYLENE PLASTIC. It even says on the package - "CAUTION: Product is not intended to be eaten or ingested. If you believe your pet has swallowed a piece, please take away and contact veterinarian if needed. Our dachshund went to town on one of these and had diarrhea for two days and cost us several hundred dollars in vet bills to do x-rays and medicine for the poor dog. What do you think a dog is going to do with a dog chew? Just find another product. This one isn't worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
L
Verified Purchase
Lizy Bean
Natrona Heights, US
★★★★★ 5
It'll only last a week
Size: 5 Inch, Color: Classic Bone, Size: 5 Inch, Color: Classic Bone
We've only had it a few days and she's already half way through it. It won't last the week. She doesn't eat it, she spits out the pieces. If you buy it was a consumable, totally worth the money. I'll probably buy my power chewer a couple a month
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025

recommand products