Timeline of Adventures

Achtung! Cthulhu Achtung! Cthulhu 2D20
1

I’ve been doing some messing about and I think I’ve pretty much got the current A!C adventure timeline listed (to complement the one in the 2d20 Gamemasters’ Guide). It doesn’t include theSerpent & the Sands campaign book, or any Campaigns/Missions not yet published (if I get a chance I’ll update it when they are released). Note that some of these were for the old A!C edition using Call of Cthulhu 6/7e and Savage Worlds - those are marked with a *)

Date Adventure Location
Summer 1939 Zero Point : Three Kings* Castle Karlstein, Czechoslovakia
August 1939 The City of Broken Dreams (Shadows of Atlantis ) Vienna, Austria
August 1939 A Look at the Past (Shadows of Atlantis) Peru (CoC), British Honduras (2d20 can be set any time before 1941)
August-September 1939 Into the Mouth of Truth (Shadows of Atlantis) Rome, Italy
September 1939 A Light on the Horizon (Shadows of Atlantis) Egypt
December 1939 The Roof of the World (Shadows of Atlantis) Tibet
December 1939 A Precious Jewel (Shadows of Atlantis) India
January 1940 Fire & Brimstone (Shadows of Atlantis) Isfahan, Persia
February 1940 A Look at the Past (Shadows of Atlantis) British Honduras (2d20 can be set any time before 1941)
Summer 1940 Zero Point : Heroes of the Sea Dunkirk, France
May-June 1940 The Island of Splendour (Shadows of Atlantis) Greenland
June 1940 A Quick Trip to France Hautot-Sur-Seine, France
June 1940 Under the Gun (Missions) Dover, England
August 1940 Operation Vanguard (Missions) Skellan Island, Netherlands
September 1940 Operation Falling Crystal (Missions) St. Abbs, Scotland
Winter 1941 -Summer 1942 Zero Point: Code of Honour* Istanbul, Turkey
January 1941 Operation Wallace ( Missions) London, England
February 1941 The Romanian Imperative (Missions) Zaltan, Romania
July 24th 1941 Operation Marseille (Missions) Marseille, France
July 4th 1942 Seventh-Inning Slaughter (Missions) Beyer Stadium, USA
Spring 1943 The Trellborg Monstrosities* Trellborg, Finland
Winter 1943 Light on the Mountain (Missions) North of England
Winter1944 Kontamination* Kalterherberg, Germany
Winter 1944 Blessed of the Wind (Missions) Vindhjem, Norway
December 1944 Assault on the Fuhrer Train The Ardennes, Belgium/France
December 1944 Forest of Fear The Ardennes, Belgium
Early 1945 Assault on the Mountains of Madness Antarctica
12 Likes
2

This looks awesome and helps me fill in what I need but is August 1939 correct for The City of Broken Dreams ( Shadows of Atlantis ). Its listed out of order withe the other starting June 1939.

3

I’ve done another check and there were a couple of errors I’d made.

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4

Are there any plans to release 2D20 conversions for the CoC/SW scenarios? If not, are there any guides to converting between the different systems?

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5

I can’t seem to edit my original post (I might be too tired, or the post is locked)… anyway:
Operation Snowstorm - anytime after December 1941, when the USA joins the war (Canada, British Columbia).
Operation Ultimatum late May 1939 - before Operation Dynamo (Dunkirk)

4 Likes
6

I believe there was a typo in Ultimatum. It should take place in 1940. War wasn’t declared by Britain and france until sept 1939.

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7

You’re right - it’s May 1940 - AFTER Dunkirk!

9

Thanks for this list :grinning:
Is it planed to reprint the Zero Point kampagne in the new 2D20 system? and are those also available in German again?

10

I’m afraid I don’t know - that’s a decision made way above my head.

11

I have Behind Enemy Lines and they seem to have changed the dates on Operation Eastbourne (now only states 1943, but it comes before Seventh-Inning, so I’d put it in March 1943), and Seventh-Inning Slaughter is now set July 4th 1943.

Thanks for the list!

12

Operation Chariot was 28th March. I’ll edit it for clarity Operation Chariot - St. Nazaire, 28th March 1942.

16

Updated 04-FEB-2024
Note that some of these were for the old A!C edition using Call of Cthulhu 6/7e and Savage Worlds - those are marked with a (*). I’ve also added some of the 2d20 World Builder A!C Missions.

Date Adventure Location
Summer 1939 Zero Point : Three Kings* Castle Karlstein, Czechoslovakia
August 1939 The City of Broken Dreams (Shadows of Atlantis ) Vienna, Austria
August 1939 A Look at the Past (Shadows of Atlantis) Peru (CoC), British Honduras (2d20 can be set any time before 1941)
August-September 1939 Into the Mouth of Truth (Shadows of Atlantis) Rome, Italy
September 1939 A Light on the Horizon (Shadows of Atlantis) Egypt
December 1939 The Roof of the World (Shadows of Atlantis) Tibet
December 1939 A Precious Jewel (Shadows of Atlantis) India
January 1940 Fire & Brimstone (Shadows of Atlantis) Isfahan, Persia
February 1940 A Look at the Past (Shadows of Atlantis) British Honduras (2d20 can be set any time before 1941)
March 1940 Operation Cold Threshold (Missions) Bering Strait, Alaska
March 1940 The Makhonjwa Egg (Missions) Valencia, Spain
May-Summer 1940 Operation Ultimatum (Missions) Normandy, France
May-Summer 1940 Zero Point: Heroes of the Sea Dunkirk, France
May-June 1940 The Island of Splendour (Shadows of Atlantis) Greenland
June 1940 A Quick Trip to France Hautot-Sur-Seine, France
June 1940 Under the Gun (Missions) Dover, England
August 1940 Operation Vanguard (Missions) Skellan Island, Netherlands
September 1940 Operation Falling Crystal (Missions) St. Abbs, Scotland
Late 1940 Operation Vesta (Missions) Argentina, ???
Early1941 Mission at the Bottom of the World (2d20 World Builders) Argentina
January 1941 Operation Wallace (Missions) London, England
February 1941 The Romanian Imperative (Missions) Zaltan, Romania
March 1941 Operation Black Cap (Missions) Glavica,Yugoslavia
June 1941 The Serpent and the Sands North Africa
July 1941 The Stuff of Nightmares (Missions) Luxembourg
Summer 1941 Peak Intensity (2d20 World Builders) Rocky Mountains, Colorado, US
Summer 1941 Raid On Alpha Base (2d20 World Builders) Rocky Mountains, Colorado, US
July 24th 1941 Operation Marseille (Missions) Marseille, France
December 1941 Operation Snowstorm (Missions) British Columbia
Winter 1941-Summer 1942 Zero Point: Code of Honour Istanbul, Turkey
February 1942 Danger Island (Missions) Singapore/Australia
March (Early) 1942 Operation Talisman (Missions) The Philippines
March 26-28th 1942 Operation Eastbourne (Missions Dossier 1 only) St. Nazaire, France
June 2nd 1942 Operation Fallen Star (Missions) Olivia Island, Arctic Circle
July 4th 1942 Seventh-Inning Slaughter (Missions) Beyer Stadium, USA
September 1942 Operation Bulwark: The Elbrus Enigma (Missions) Caucasus, Russia
November 7th 1942 Operation Kindling (Free RPG Day 2023) Algiers
Spring 1943 The Trellborg Monstrosities* Trellborg, Finland
Winter 1943 Light on the Mountain (Missions) North of England
Winter 1944 Kontamination* Kalterherberg, Germany
Winter 1944 Blessed of the Wind (Missions) Vindhjem, Norway
December 1944 Assault on the Fuhrer Train The Ardennes, Belgium/France
December 1944 Forest of Fear The Ardennes, Belgium
Early 1945 Assault on the Mountains of Madness Antarctica
17

Updated 09-JUN-2024
Note that some of these were for the old A!C edition using Call of Cthulhu 6/7e and Savage Worlds - those are marked with a (*). I’ve also added some of the 2d20 World Builder A!C Missions.

Date Adventure Location
Summer 1939 Zero Point : Three Kings* Castle Karlstein, Czechoslovakia
August 1939 The City of Broken Dreams (Shadows of Atlantis ) Vienna, Austria
August 1939 A Look at the Past (Shadows of Atlantis) Peru (CoC), British Honduras (2d20 can be set any time before 1941)
August-September 1939 Into the Mouth of Truth (Shadows of Atlantis) Rome, Italy
September 1939 A Light on the Horizon (Shadows of Atlantis) Egypt
December 1939 The Roof of the World (Shadows of Atlantis) Tibet
December 1939 A Precious Jewel (Shadows of Atlantis) India
January 1940 Fire & Brimstone (Shadows of Atlantis) Isfahan, Persia
February 1940 A Look at the Past (Shadows of Atlantis) British Honduras (2d20 can be set any time before 1941)
March 1940 Operation Cold Threshold (Missions) Bering Strait, Alaska
March 1940 The Makhonjwa Egg (Missions) Valencia, Spain
May 24 1940 Among the Wolves (Starter Set) Dunkirk, France
May-Summer 1940 Operation Ultimatum (Missions) Normandy, France
May-Summer 1940 Zero Point: Heroes of the Sea Dunkirk, France
May-June 1940 The Island of Splendour (Shadows of Atlantis) Greenland
June 1940 A Quick Trip to France Hautot-Sur-Seine, France
June 1940 Under the Gun (Missions) Dover, England
August 1940 Operation Vanguard (Missions) Skellan Island, Netherlands
September 1940 Operation Falling Crystal (Missions) St. Abbs, Scotland
Late 1940 Operation Vesta (Missions) Argentina, ???
Late 1940? Operation Golden Tango (2d20 World Builders) South America - Uruguay, Argentina
Early 1941 Mission at the Bottom of the World (2d20 World Builders) Argentina
January 1941 Operation Wallace (Missions) London, England
February 1941 The Romanian Imperative (Missions) Zaltan, Romania
March 1941 Operation Black Cap (Missions) Glavica,Yugoslavia
June 1941 The Serpent and the Sands North Africa
July 1941 The Stuff of Nightmares (Missions) Luxembourg
Summer 1941 Peak Intensity (2d20 World Builders) Rocky Mountains, Colorado, US
Summer 1941 Raid On Alpha Base (2d20 World Builders) Rocky Mountains, Colorado, US
July 24th 1941 Operation Marseille (Missions) Marseille, France
December 1941 Operation Snowstorm (Missions) British Columbia
Winter 1941-Summer 1942 Zero Point: Code of Honour Istanbul, Turkey
February 1942 Danger Island (Missions) Singapore/Australia
March (Early) 1942 Operation Talisman (Missions) The Philippines
March 26-28th 1942 Operation Eastbourne (Missions Dossier 1 only) St. Nazaire, France
June 2nd 1942 Operation Fallen Star (Missions) Olivia Island, Arctic Circle
July 4th 1942 Seventh-Inning Slaughter (Missions) Beyer Stadium, USA
September 1942 Operation Bulwark: The Elbrus Enigma (Missions) Caucasus, Russia
September 1942 Jungle Rot (2d20 World Builders) Guadalcanal
October 1942 Island Getaway (2d20 World Builders) Guadalcanal
November 7th 1942 Operation Kindling (Free RPG Day 2023) Algiers
Spring 1943 The Trellborg Monstrosities* Trellborg, Finland
Winter 1943 Light on the Mountain (Missions) North of England
Winter 1944 Kontamination* Kalterherberg, Germany
Winter 1944 Blessed of the Wind (Missions) Vindhjem, Norway
December 1944 Assault on the Fuhrer Train The Ardennes, Belgium/France
December 1944 Forest of Fear The Ardennes, Belgium
Early 1945 Assault on the Mountains of Madness Antarctica
1 Like
18

You’re missing two 2d20 WB adventures: Jungle Rot (SEP 42) and Island Getaway (OCT 42).

19

Updated 05-JUL-2024
Note that some of these were for the old A!C edition using Call of Cthulhu 6/7e and Savage Worlds - those are marked with a (*). I’ve also added some of the 2d20 World Builder A!C Missions.

Date Adventure Location
Summer 1939 Zero Point : Three Kings* Castle Karlstein, Czechoslovakia
August 1939 The City of Broken Dreams (Shadows of Atlantis ) Vienna, Austria
August 1939 A Look at the Past (Shadows of Atlantis) Peru (CoC), British Honduras (2d20 can be set any time before 1941)
August-September 1939 Into the Mouth of Truth (Shadows of Atlantis) Rome, Italy
September 1939 A Light on the Horizon (Shadows of Atlantis) Egypt
December 1939 The Roof of the World (Shadows of Atlantis) Tibet
December 1939 A Precious Jewel (Shadows of Atlantis) India
January 1940 Fire & Brimstone (Shadows of Atlantis) Isfahan, Persia
February 1940 A Look at the Past (Shadows of Atlantis) British Honduras (2d20 can be set any time before 1941)
March 1940 Operation Cold Threshold (Missions) Bering Strait, Alaska
March 1940 The Makhonjwa Egg (Missions) Valencia, Spain
May 24 1940 Among the Wolves (Starter Set) Dunkirk, France
May-Summer 1940 Operation Ultimatum (Missions) Normandy, France
May-Summer 1940 Zero Point: Heroes of the Sea Dunkirk, France
May-June 1940 The Island of Splendour (Shadows of Atlantis) Greenland
June 1940 A Quick Trip to France Hautot-Sur-Seine, France
June 1940 Under the Gun (Missions) Dover, England
August 1940 Operation Vanguard (Missions) Skellan Island, Netherlands
September 1940 Operation Falling Crystal (Missions) St. Abbs, Scotland
Late 1940 Operation Vesta (Missions) Argentina, ???
Late 1940? Operation Golden Tango (2d20 World Builders) South America - Uruguay, Argentina
Early 1941 Mission at the Bottom of the World (2d20 World Builders) Argentina
January 1941 Operation Wallace (Missions) London, England
February 1941 The Romanian Imperative (Missions) Zaltan, Romania
March 1941 Operation Black Cap (Missions) Glavica,Yugoslavia
June 1941 The Serpent and the Sands North Africa
July 1941 The Stuff of Nightmares (Missions) Luxembourg
Summer 1941 Peak Intensity (2d20 World Builders) Rocky Mountains, Colorado, US
Summer 1941 Raid On Alpha Base (2d20 World Builders) Rocky Mountains, Colorado, US
July 24th 1941 Operation Marseille (Missions) Marseille, France
December 1941 Operation Snowstorm (Missions) British Columbia
Winter 1941-Summer 1942 Zero Point: Code of Honour Istanbul, Turkey
February 1942 Danger Island (Missions) Singapore/Australia
March (Early) 1942 Operation Talisman (Missions) The Philippines
March 26-28th 1942 Operation Eastbourne (Missions Dossier 1 only) St. Nazaire, France
June 2nd 1942 Operation Fallen Star (Missions) Olivia Island, Arctic Circle
July 4th 1942 Seventh-Inning Slaughter (Missions) Beyer Stadium, USA
September 1942 Operation Bulwark: The Elbrus Enigma (Missions) Caucasus, Russia
September 1942 Jungle Rot (2d20 World Builders) Guadalcanal
October 1942 Island Getaway (2d20 World Builders) Guadalcanal
November 7th 1942 Operation Kindling (Free RPG Day 2023) Algiers
January 1943 Operation Oberon (Missions) Shanghai, China
Spring 1943 The Trellborg Monstrosities* Trellborg, Finland
Winter 1943 Light on the Mountain (Missions) North of England
June 4th 1944 D-Day: The Darkest Day France
Winter 1944 Kontamination* Kalterherberg, Germany
Winter 1944 Blessed of the Wind (Missions) Vindhjem, Norway
December 1944 Assault on the Fuhrer Train The Ardennes, Belgium/France
December 1944 Forest of Fear The Ardennes, Belgium
Early 1945 Assault on the Mountains of Madness Antarctica