2 books in series

The Apocalypse Duology

The Apocalypse Duology is a 2-book series with 2 primary works first released in 2014 with contributions by Gary Gibson.

#1
Extinction Game

#1 of 2 in The Apocalypse Duology

2014 • 4 Readers • 341 pages • 3

#2
Survival Game

#2 of 2 in The Apocalypse Duology

2016 • 2 Readers • 352 pages