The Apocalypse Duology
Despite this series comprising of (to date) three novels and a piece of short fiction, it is still referred to as a "duology" e.g. in Amazon product descriptions.
Titles (3)
| # | Title | Author(s) | Year | Type |
|---|---|---|---|---|
| 1 | Extinction Game | Gary Gibson | 2014 | |
| 2 | Survival Game | Gary Gibson | 2016 | |
| 3 | Doomsday Game | Gary Gibson | 2019 |