Dead-island-riptide (2026)

: Located in the Henderson Military Base west of the cinema. It is one of the 9 Secret Files required for "The Collector" or "The Hoarder" achievements.

: A specific quest item that players often find difficult to locate, essential for progressing certain medical-related side objectives.

: You interact with Dr. Kessler in the BioSphere (Chapter 4), where he provides background on the virus mutations based on his years of research with the WHO.