| Title | Code | Date | Publisher | System (Setting) |
|---|
 Zais | | Mar 2023 | Chaosium | Call of Cthulhu (Dreamlands) |
| Zangari's Apostasy | | Apr 2022 | Chaosium | Call of Cthulhu (Classic) |
| Zennor and the Sins of St Senara | | 2021 | Stygian Fox | Call of Cthulhu (Gaslight) |
 Zero Point, Part 1 - Three Kings | MPS01011C | 2012 | Modiphius Entertainment | Call of Cthulhu (Achtung!) |
| Zero Point, Part 1 - Three Kings | MPS01011P | 2012 | Modiphius Entertainment | PDQ |
| Zero Point, Part 1 - Three Kings | MPS01011S | 2012 | Modiphius Entertainment | Savage Worlds (Achtung!) |
| Zero Point, Part 1 - Three Kings | MPS01011T | 2013 | Modiphius Entertainment | Trail of Cthulhu |
| Zero Point, Part 1 - Three Kings * | MUH01011CS | 2013 | Modiphius Entertainment | Call of Cthulhu (Achtung!), Savage Worlds (Achtung!) |
| Zero Point, Part 2 - Heroes of the Sea | MPS01012C | 2012 | Modiphius Entertainment | Call of Cthulhu (Achtung!) |
| Zero Point, Part 2 - Heroes of the Sea | MPS01012S | 2012 | Modiphius Entertainment | Savage Worlds (Achtung!) |
| Zero Point, Part 2 - Heroes of the Sea | MPS01012T | 2013 | Modiphius Entertainment | Trail of Cthulhu |
| Zero Point, Part 2 - Heroes of the Sea * | MUH01012CS | 2013 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) |
| Zero Point, Part 2 - Heroes of the Sea | MPS01012P | 2014 | Modiphius Entertainment | PDQ |
| Zero Point, Part 3 - Code of Honour | MUH051257 | 2017 | Modiphius Entertainment | Savage Worlds (Achtung!), Call of Cthulhu (Achtung!) |
| Zero Point, Part 3 - Code of Honour | MUH051257SW | 2018 | Modiphius Entertainment | Savage Worlds (Achtung!) |
| The Zombie Apocalypse | | 2022 | Evil Hat Productions | Fate of Cthulhu |
| Zombies! | | Jan 2022 | Chaosium | Call of Cthulhu (Now) |
| Zortiander Inc. Catalogue | | | Self Published | CthulhuTech |