: In a desperate finale at a research lab, Harlow—who has been injecting herself with a mutagen—attacks the group. To defeat her, the survivors are forced to inject themselves with the same experimental mutagen, granting them temporary superhuman strength but at a great physical and mental cost.

For those looking to experience the game on PC, you can find official listings and technical specifications on the Steam page for Dead Island: Riptide Definitive Edition or through retailers like Epic Games Store.

: A massive monsoon hits the archipelago, causing the ship to crash and allowing a new zombie outbreak to begin onboard. A New Battlefield: Palanai

The narrative picks up immediately after the events of the first Dead Island . The Prologue: Escape and Capture

: As they fight for survival, the group encounters Harlow , a survivor who eventually reveals the horrifying truth: the outbreaks were started deliberately to test a virus, and there is no known vaccine. The Climactic End

: The island is heavily flooded, forcing the group to use boats for transportation through the jungle and the city of Henderson .

: Instead of being rescued, they are immediately taken into custody by Frank Serpo , a civilian VIP, and Colonel Sam Hardy . The survivors are tested, and their immunity is seen as a scientific curiosity rather than a reason for celebration.

: The game ends with the survivors escaping Palanai on a boat. However, as they drift away, they begin to show signs of succumbing to the virus's violent side-effects, leaving their ultimate survival uncertain.