The Shelter Time Lock Safe, as the term implies, only opens at a specific day and hour. Before we get to that, though, let's talk about how you can gain access to the Shelter itself. Since the Shelter ...

You will encounter the Hydro-Puzzle safe during the “Hydro-Puzzle” side quest. After completing “Power Gambit” and starting a new main quest called “A New Strain”, you’ll receive a message from ...