Home / The Upgrade Apocalypse - Book 1: (A LitRPG Apocalypse series) (The Upgrade Apocalypse series) The Upgrade Apocalypse - Book 1: (A LitRPG Apocalypse series) (The Upgrade Apocalypse series) Charles Dean & R.A. Mejia ★ 5.0 · 55 reads Sign in to save this Request CodeZLIB.IO17463690 Published2022 PublisherSingle Pages1 Languageeng FormatEPUB