| Title | Pages | Publication | Code | Date | Publisher | System (Setting) |
|---|
 Achtung Cthulhu 2d20 | 8-10 |  Modiphia | 4 | Win 2020 | Modiphius Entertainment | Achtung! Cthulhu | |
 Achtung! Cthulhu Miniatures | 12-15 |  Rise of the Black Sun | MUH050480 | 2016 | Modiphius Entertainment | Call of Cthulhu (Classic) | |
| Achtung! Cthulhu Skirmish: Rise of the Black Sun | 3-11 | Rise of the Black Sun | MUH050480 | 2016 | Modiphius Entertainment | Call of Cthulhu (Classic) | |
| Action | 25-42 |  Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Adversaries and Allies | 186-249 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Allied Forces | 175-182 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Arms and Equipment | 153-168 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
 Assault on the Fuhrer Train | | Assault on the Fuhrer Train | MUH052306 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Germany; 1944; November |
| Barbarous Coasts | 83-94 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
 Before the Flood | | Before the Flood | MUH050558 | 2016 | Modiphius Entertainment | None | |
| Bestiary | 211-264 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Blackbird's Nest | 150-167 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| Blood in the Crypt | 88-99 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| British Honduras | 143-164 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Belize; 1939 |
| Bursting Big Brunhilda | 152-165 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Conflict | 29-56 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Corporal Aaron Liebowitz | 40-42 | Modiphia | 3 | Win 2017 | Modiphius Entertainment | Call of Cthulhu (Achtung!) | |
| Cradle of the Shoggoth | 100-115 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| Creatures | 33-38 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | |
| Crossing the Line | 16-25 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Crystal Void | | Tales of the White Witchman | MUH50364 | 2016 | Modiphius Entertainment | None | |
| The Crystal Void | | The Crystal Void | MUH50189 | 2015 | Modiphius Entertainment | None | |
| Destroy the Drachenwolfe | 166-180 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Documents of the Hidden Wars | 12-16 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Egypt and Cairo | 55-78 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Egypt; 1939 |
| The Escaped Horror | 34-43 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Forest of Fear | 16-30 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| The Gamemaster | 121-158 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Gamemaster | 100-137 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
 Gamemaster's Screen and Toolkit | | Gamemaster's Screen and Toolkit | MUH051746 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Greenland and Atlantis | 165-198 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Greenland; 1939 |
| A Guide to North Africa | 11-18 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Hall of a Thousand Footsteps | 132-149 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Heart of the Hive | 106-120 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; 1942; Winter |
| Heroes and Villains of the Secret War | 159-210 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Heroes are Forged | 43-84 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Heros and Villains | 53-72 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Hidden Wars | 14-29 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| In the Steps of the Elder | 26-33 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| India | 99-120 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | India; 1939 |
| Introduction | 9-30 | Skirmish: Commander's Set | MUH050454 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | |
| Introduction | 7-10 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| Introduction | 5-10 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | |
| Introduction | 5-10 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Introduction | 5-8 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Introduction | 5-13 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Introduction | 5-11 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Introduction | 5-10 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | |
| Laurium | 78-99 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Mad Jack McMasters | 58-61 | Modiphia | 2 | Sum 2017 | Modiphius Entertainment | Call of Cthulhu (Achtung!) | |
| Magic | 137-162 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Magic | 57-82 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Magic and the Mythos | 85-120 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Magic and the Mythos | 158-185 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Magic in Achtung! Cthulhu | 8-9 | Modiphia | 5 | Spr 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| The March of History | 163-174 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Me and Major Jones | 95-105 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Mounts and Vehicles | 169-180 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Nepal | 79-98 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Nepal; 1939 |
| A New Spirit of Co-operations | 70-87 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| North Africa Needs You | 35-52 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| Nyarlathotapp | 100-118 | N | | Nov 2022 | Stygian Fox | None | |
| Operation Arm's Length | 5 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Bastion | 52-64 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; Winter; 1942 |
| Operation Bookworm | 10-11 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Bronze | 65-78 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; Winter; 1942 |
| Operation Close Quarters | 6-7 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Closed Casket | 12-13 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Dead Man Walking | 14-15 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Hawk | 131-140 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; 1942; Winter |
| Operation Home Front | 56-69 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Operation Meteor | 80-91 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; 1942; Winter |
| Operation Murky Waters | 8-9 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Phantom | 42-51 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; Winter; 1942 |
| Operation Red Herring | 39-55 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Operation Sparrow | 141-150 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; 1942; Winter |
| Operation Symphony | 92-105 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; Winter; 1942 |
| Operation Tsunami | 70-82 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Operation Turkey Shoot | 4 | Secret War Operations | MUH700700 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | Europe |
| Operation Vanguard | |  Behind Enemy Lines | | 2022 | Modiphius Entertainment | Achtung! Cthulhu | The Netherlands; 1940; August |
| Operation Vanguard | 4-27 | Operation Vanguard | MUH052302 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | The Netherlands; August; 1940 |
| Operations Pheasant | 122-130 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | Norway; Winter; 1942 |
| The Path of Heroes | 83-144 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Persia | 121-142 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Iran; 1939 |
| Perspectives of the Era | 30-39 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Playing the Game | 15-24 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Playing the Game | 17-28 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Preparation | 31-55 | Skirmish: Commander's Set | MUH050454 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | |
| The Prisoner in the Iron Cells | 116-131 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| A Quick Trip to France | 20-35 | Quickstart Rules and Adventure | MUH051745 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | France; June; 1940 |
| Quickstart Rules | 8-19 | Quickstart Rules and Adventure | MUH051745 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Relics of Myth and Legend | 138-157 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Resurrection Men | | Resurrection Men | MUH0580233 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | Ghoul |
| Rise of the Serpent | 73-94 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| Rome | 33-54 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Italy; 1939 |
| The Sacred Grove | 60-69 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| Secret Forces of the Secret War | 6-7 | Quickstart Rules and Adventure | MUH051745 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Secret War | 11-56 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Secret War in North Africa | 19-34 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| A Secret War? | 9-14 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Secret Weapons of the Secret War | 57-84 | Gamemaster's Guide | MUH051744 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Sequence of Play | 56-93 | Skirmish: Commander's Set | MUH050454 | 2016 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) | |
| Servant of the Dark | 105-114 | Dark Tales from the Secret War | MUH50200 | 2015 | Modiphius Entertainment | None | |
| Sober Cannibals, Drunk Christians | 116-124 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Spells and Tomes | 111-118 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| Stormy Weather | 44-59 | Forest of Fear | MUH052305 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| Suboptimal | 125-137 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Talents | 85-96 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Talents | 145-152 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| Tales from the Crucible | | Tales From the Crucible | | 2017 | Modiphius Entertainment | Call of Cthulhu (Achtung!) | |
| Termination Day | 138-151 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Tomb of the Aeons | | Tales of the White Witchman | MUH50364 | 2016 | Modiphius Entertainment | None | |
| Tomb of the Aeons | | Tomb of the Aeons | MUH050338 | 2015 | Modiphius Entertainment | None | |
| Tools of the Trade | 95-110 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| Tools of the Trade | 11-22 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | |
| Tools of the Trade | 97-118 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Tools of the Trade | 11-40 | The Norway Projekt | MUH0010319 | Jan 2026 | Modiphius Entertainment | Achtung! Cthulhu | |
| The Trellborg Monstrocities | 3-48 | The Trellborg Monstrosities | MPS01021S | 2013 | Modiphius Entertainment | Savage Worlds (Achtung!) | |
| The Trellborg Monstrosities | 3-35 | The Trellborg Monstrosities | MPS01021C | 2013 | Modiphius Entertainment | Call of Cthulhu (Achtung!) | Norway; Finland; 1943 |
| The Trellborg Monstrosities | | The Trellborg Monstrosities | MPS01021F | 2014 | Modiphius Entertainment | None | |
| The Trellborg Monstrosities | | Tales of the White Witchman | MUH50364 | 2016 | Modiphius Entertainment | None | |
| True Places Never Are | 106-115 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Unleash the Hellish Horde | 181-194 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | France; 1944 |
| Vehicles | 23-32 | D-Day: The Darkest Day | MUH0010317 | May 2024 | Modiphius Entertainment | Achtung! Cthulhu | |
| Vehicles | 119-136 | Player's Guide | MUH051742 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| Vehicles and Creatures | 119 | The Serpent and the Sands | MUH0010330 | 2023 | Modiphius Entertainment | Achtung! Cthulhu | |
| Vienna | 15-32 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | Austria; August; 1939 |
| Welcome to Atlantis | 5-14 | Shadows of Atlantis | MUH051747 | 2022 | Modiphius Entertainment | Achtung! Cthulhu | |
| What is Achtung! Cthulhu? | 4-5 | Quickstart Rules and Adventure | MUH051745 | 2021 | Modiphius Entertainment | Achtung! Cthulhu | |
| The World of Cohors | 40-77 | Gamesmaster's Guide | MUH0860110 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
| World of Cohors | 181-206 | Player's Guide | MUH0860108 | Sep 2025 | Modiphius Entertainment | Cohors Cthulhu | |
